Sorry, I feel for you. Got a 3 year old too, same situation. Strangely enough, mine is happy whipping it out everywhere else and just flying free. Potplants, lawn, against a wall...toilet, yeah right. Got a 5 year old and it was completely different, he was all for it before we thought he was ready.

I wish there was an easy answer but all children are different. Bribery, manipulation etc will only go so far. The "seriously" part sort of tells me he is slightly too smart for the tricks and such and is now almost just screwing with you! Well, that's how mine makes me feel 🤣