Sherlock stumbled back a step with the shove, but that only prompted him to go closer, John's voice in his ear like the voice of reason but he could not heed it.

He could almost feel his death, there on the edge, and he was so close to the glass ceiling--

One good shove--

"Oh, good, at least then we know your true colours have been showing everywhere," He bit as he finally gave in and gave Garrus a good shove back.