Ever wanted to punch Martin Shkreli in the face? You soon may get your chance, and help a young child, too.

The infamous “pharma bro” likely has a long list of those who would like to hit him. Shrekli, the former Turing Pharmaceutical CEO, gained the ire of many last year after raising the price of a life-saving HIV and cancer drug by over 5,000 per cent to $750 per pill. It had previously cost just $13.50. Last month he defended Mylan’s raising of the price for the EpiPen.

After losing friend and PR manager Mike Kulich, 29, on Saturday, Shrekli wants to give people their chance to hit him in hopes of raising money for Kulich’s soon to be 6 year old son, Tyler.

“I will auction one slap/punch in the face to benefit my friend Mike who passed away & leaves behind a young son who survived cancer,” the pharmacy exec posted to Twitter Monday.

According to the donation page Tyler had been waging his battle with cancer after being diagnosed with acute lymphocytic leukemia since he was two years old. Tyler finished his chemotherapy in August, only to lose his father a month later.

Money raised from the fund will go into a trust fund for Tyler. As of Tuesday morning the page had raised over $5,000 with a goal of raising $15,000 for the fund.

Shkreli for his part has agreed to match donations “to a certain point” and the winner will be allowed to record the slap or punch on video. Winners can also choose to nominate someone else, like Mike Tyson one Twitter user recommended, to do the punch for them. So long as the money is paid and the other person is willing to throw the punch Shkreli tweeted that he would allow it.

In a subsequent tweet Shkreli said the highest bid for punching him in the face was $78,000. Those interested in placing a bid should use Twitter’s direct message function to privately message their offer.

Shrekli did not immediately respond to a Twitter direct message seeking information on when the deadline is to submit bids or the highest number he’d be willing to match.

“Mike architected my publicity stunts,” tweeted Shrekli. “I bet he is watching, smiling.”

In addition to representing Shkreli, Kulich was also involved in public relations for the adult entertainment industry.