Oh Stirk, Stirk, Stirk, will you NEVER learn. Tying up your Batclan captive in fairylights and ballgagging them is SO 2006, and it looked better on Robin... as most forms of tying up do. Plus stealing the Joker's gags (literally) is not going to make you his buddy in Arkham...
The Tim/Bruce teasing is indeed fun, but the thing is, I can see this sort of teasing being an example of the role reversal in the current Batman and Robin, just WAIT until Dick finds out Damian has a crush on Steph, the kid will NEVER hear the end of it, or better yet Babs! :) Of course we may never see it, but I'd like to!