Today we visited a friend for a playdate. It was our first time over so we came bearing a chocolate cake. It was soooo good I could've eaten half of it. I would've if I were at home! We stayed for 2.5 hours; Elon was playing quietly with her 4 year old upstairs so we weren't in any hurry to go. My question to you is how long is too long to stay for a playdate?