According to Michael Cohen after Bill Gates was hit in the face with a cream pie Trump became obsessed with that not happening to him. Cohen said that ever time Trump went to a event he would remind his security team to be on alert for someone carrying a cream pie and if someone did hit him with a pie and that person didn't wind up in the hospital they would be fired. Personally I think a cream pie would be too good to waste on Trump he deserves a cow pie not a cream pie. Cheers!
https://www.businessinsider.in/politics/world/news/trump-was-terrified-getting-hit-in-face-by-a-cream-pie-like-bill-gates-was-michael-cohen-says/articleshow/91744062.cms