The people who work at fast food restaurants put up with a lot, and you might think it would be hard to surprise them. The guys at dating advice site Simple Pickup, however, found a way: handing those workers five $20 bills as a thanks for effort that usually goes unrecognized.

The workers’ reactions vary from stunned disbelief to outright refusal to effusive gratitude, but by far the best response to the generous tip is the final one featured in the video – she pays it forward by handing some money to a homeless customer.

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According to the Simple Pickup guys, a recent charity effort ended with their charity of choice turning down their donation as a result of some fairly ribald fundraising techniques. Thus, they’re now trying to find creative ways to hand out the cash. This video – the first of a series in which the guys perform acts of charity, YouTube prank-style – has garnered more than a million views since going live last week.

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