He can and hates it. There is an infamous family story of Fred dumping a bowl of mashed potatoes on Donald’s head and it became a piece of Trump family lore.

the only thing he could think of to do to make Donald stop: He picked up what must have been the quite massive bowl of mashed potatoes that my grandmother had just put on the table and he dumped it on Donald’s head. Robert immediately went quiet and Donald was speechless.

And, probably worst of all for him, everybody, except Donald, of course, started laughing. They were laughing their heads off, and Donald knew they were laughing at him. It may have been the first time, at least consciously, that Donald felt that awful feeling of humiliation, and there was nothing he could do about it. He couldn’t laugh it off because, even then, he wasn’t capable of laughing at himself. I think it some ways, this is the source of his grievance, the source of his always feeling that everything is against him and life is completely unfair—which sounds absurd because among other things, it’s completely untrue.

Being humiliated by a bowl of mashed potatoes is the Donald Trump fascist dictator origin story.