Thanks for all the input. If he comes Monday and somehow a switch has flipped... Great! But I'm a bit skeptical considering his complete lack of interest here. There's no way this kid is walking in on Monday telling me he needs to potty. We'll see....
Grandma told Mom that she was potty trained by 1.5......of course, Grandma also revealed that it happened through her spanking her. Mom said she didn't agree with that, but here we are months later with Grandma helping with a potty training weekend.....
This should be interesting...