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ST. LOUIS, MO (KTVI) - When Amy Thompson loaded up the car for a July Cardinals game, she was not expecting a lengthy phone call from doctors. She said that call was a distraction that left her not as prepared as she would have liked for a trip to the ballpark.

She ended up needing milk for her son because of a medical condition.

“When Lucas was born we were in the hospital for 4 ½ months. We came home at the beginning of flu season we didn’t leave our house much. We were dealing with a condition we had never heard of before,” said Thompson.

Her son was born with gastroschisis and has a feeding tube underneath his Yadier Molina shirt.

Amy and her husband wanted to take their son Lucas to a baseball game because the family had spent plenty time in places that were not as much fun. When she asked an usher for milk, she was not expecting to have any luck. She said the usher went above and beyond to find her son milk.

She wrote about the length that usher went to in her blog. She just wants him to know how much that milk meant to her and her family.

"Thank you. When I asked you if you knew where I could find milk for my son, at Busch Stadium on a sweltering summer evening, I expected you to tell me I was out of luck, or at best offer a vague suggestion. Instead, you took us several sections over into the Redbird Club even though our tickets didn’t grant us access, because you knew it housed a bakery – but they were out of milk. Instead of giving up, you took us three levels down to a store on the main concourse, where we once again struck out – which you know, because you stayed and helped us look. So you led us halfway around the stadium to a donut stand, where we at last found what we were looking for. While I paid for it you grabbed us the straw my son was asking for, along with some napkins for good measure. And then you went back with us, halfway around the stadium and up three levels and back through the Redbird Club and over several sections, to make sure we didn’t get lost on our way back, because we’d had to travel so very far to find that bottle of milk. It took two innings, but you made sure my son was happy. You did all this not knowing why that milk was important to us. You may have thought my son was spoiled, or that I was a pushover unwilling to say no to her three year old. If you thought that, you didn’t show it. You were wonderful. What you didn’t know is that beneath my son’s Yadi t-shirt there’s a central line and a feeding tube. You didn’t know that the unusual form and function of his little body mean that he dehydrates easily, but also that drinking too much water could ultimately land us in the hospital, and for whatever reason, against most logic, right now milk is the thing he tolerates best. You didn’t know that for the better part of the last three years it’s been incredibly hard for us to go places on a whim, or that in recent months we’ve vowed not to let his medical needs stop us from doing things, and so taking up our friends on these last-minute Cardinals tickets was a small triumph for us. You didn’t know that we might be facing another big surgery soon that could keep us mostly quarantined to our own house for weeks or months; or that I’d forgotten to grab his milk because I’d received an unexpected and lengthy phone call from his doctor as we were packing up our ballgame bag and had been distracted by talking through the laundry list of changes she wanted us to make in a last-ditch effort to avoid that surgery. You didn’t know those things. You just saw a boy who wanted some milk, and you were kind to him. And I can’t thank you enough.

“A lot of people have commented that this is such a great reminder that we can all get caught up in our lives, and we don’t know what’s going on with the people around us,” said Thompson. “Just remembering to be kind is really important.”

Her blog was picked up by the Huffington Post and shared more than 200,000 times.

“I would really love to thank him again and let him know how much that meant to us,” said Thompson. “I would encourage him to continue to be kind.”

Thompson also hopes her blog helps other parents in similar situations know they are not alone.

The St. Louis Cardinals released the following statement about the actions of the usher:

We are blessed to have outstanding event staff who pride themselves on doing everything they can to enthusiastically exceed guest expectations. Our mission is to deliver world class service to all fans who come through the turnstiles of Busch Stadium. It is through the efforts of all of our employees that the St. Louis Cardinals have earned the reputation as being one of the most fan, and family-friendly, places to visit in baseball. This is an inspiring story, and a wonderful example of how any employee can do something extraordinary with a simple act of kindness.