Notorious pharmaceutical executive and entrepreneur Martin Shkreli will auction off a chance to punch or slap him in the face, according to a couple of posts he published on Twitter.

The pharma bro said on the social media platform that he'll let the highest bidder hit him in the face to help benefit his friend, who died and left behind a son who survived cancer. Shkreli said the two highest bidders so far are for $78,000 and $25,500.

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Last year, Shkreli faced intense scrutiny when his then company, Turing Pharmaceuticals, raised the price of its antimalaria drug Daraprim by more than 5,000 percent. Since then, he has gained more attention for being indicted by a federal grand jury on charges of securities fraud.