What I hate most is unchangeable keybindings, and not just because I am playing on a QWERTZ-keyboard, but because I prefer to play one-handed (for obvious reasons).
Besides that, "T" is right next to "Z", which is a nuisance because it breaks things if you press "T" more than twice (you can't use items like dildo or mysterious box anymore once it reaches a count over 1).
So, there are two or three solutions:
1. Rebind that key to a less accessible area
2. Make it so unique items can't be cheated if you already possess them
3. Allow players to make their own keybindings
I think 1 would be the easiest to do, though 2 would be a more permanent solution. 3 is kinda 1 just better and even more player-friendly.