I had a patient call me out last night ...
His IV was beeping - had an air bubble, and it was stubborn so it took a while to get it straightened out. When I finished, I said, "There, I think that should work for you now..." or something to that effect,
and he said, "You think? YOU THINK it will be ok now???? Shouldn't you be SURE??"
He kind of startled me, and then he laughed and said, "Hey, it's ok, but you may make some of your more anxious patients really nervous if you say things like that!"
He was right -- I say "I think" a lot. Maybe it's because I'm new and not very confident, or maybe I've been doing it so long I don't even realize it, but "I think" I'd better start paying more attention to what I say before I say it! (Just one more thing to worry about...)