Fighting back is great fun. And since the guy I play with has about 10 inches and many pounds of advantage over me I know that I'll never win! I'm even the more ticklish one.

Certainly not something I do always, or even often - I usually cave pretty quickly with this guy. Generally I fight back when I need it rough, and he's learned that when I argue and fight it's because I do want to lose and those are the days that I really need to get the shit kicked out of me. And he's generally happy to oblige. The days I fight generally turn into the days I end up in a sobbing heap.

...does picking a fight to provoke him count as topping from the bottom?