Oh Yes, I have two stories:
1. In college a young teacher who was wearing a sleeveless top. She was trying to reach a book that was in a high place and I poked her armpits, she lower her arms quickly and then with her elbow knock my stomach.
2. It was with my ex-wife, in the morning she was trying to reach coffee mug, and my "Good Morning" was poking her armpit, she drop the coffee mug and broke down. Remember when someone laugh and then cry? well that's what happened to me when she made me pay for a new coffee mug. LOL