Tell me how you keep calm and not lose your temper. I need some strategies. My 3.5 year old can really push my buttons and I feel myself losing my cool and I am not handling myself the way I want to.

Example: tonight I was giving LO a bath, and right after getting dressed he was starting to act goofy and wild, was not listening, and started with the potty talk that we have been trying to get him to stop doing.... I ask a bunch of times to stop, he hears me and keeps doing it. I start getting mad, start to talk very sternly, he starts laughing, enjoying watching me get mad. I want to scream... But I walk out of the room and let DH deal, as he sees I'm going to lose it.

How do you deal with these types of situations? I have tried many things, but feel like 1/2 the time whatever I try works, and 1/2 it doesn't.