I want to do a play-through as a pure thief taking most of the perks in pickpocket and sneak. Also some light armor and maybe speech. The problem with these characters is that they will die fast when detected and in battle situations. I'm thinking of giving this character the ring of Hircine and using werewolf form for these situations when needed. Does this seem like a fun character to play? Let me know your opinions.

I've only played one werewolf character a long time ago before the dlc came out and it seemed pretty exciting, but unnecessary because that character was a tank anyway. I'm thinking it might give a thief character a bit of variety and an option to defend himself in a worst-case scenario.

Also, do you think it would be too weird for a khajiit to turn into a werewolf?

i think it would be good if your thief ended up getting found and theres a lot of enemies, but i would work on your wolf so he's stronger. It would be kinda weird for a khajiit but whatever its your game it would be interesting.