M.L.
I am really big into distraction. For instance, if my 20-month-old daughter starts to act out while I'm changing her diaper (kicking and throwing her head back), I ask her "Oh, where is the clock? I can never find it" (she loves clocks for some reason) and then she is proud to show it to me. If she doesn't want to be held, I'll start asking her about the toy that's on the ground or the show on TVand let her tell me about it.
Good luck!
M.