I don’t think I’m ever going to get over the fact that he is literally holding him off the edge of a building by just his coat and he still decides to be a sarcastic ass.
The first gif though. Sherlock tried to give him a shock or scare by jolting him, but he just lets his arms flop back and forth. His expression doesn’t even change. He’s just looking at him as if to say Go on, then. Let go, I dare you.
Just, the fact that he doesn’t care to the point of killing himself because of it breaks my heart.