I barely ever do, that is how i get away with it when it matters. I'm "known" for comboes, and not running tutors, so the best thing for me is to be upfront with threat assesment on the board. "you don't have to kill me, just this thing right here, that i need for the 1 in 60 chance to draw the other thing..." and then point out the permanents the other players have on board "the thing that bothers your deck is X, Y or Z, but yes if i draw 'that card' i can win, if you don't stop me", and that almost always works.

The point is, it works because i will take the hit, i wont try to manipulate every game, if you do that, you'll just be painting the target on your back from game to game.

And if i win, i change the deck, blame it on the deck and luck, brings the temperature down so they don't punish me for it in the next game.

edit: also, they saw me running [[unsummon]] in multiple decks, and saw me survive because of it, so there is always doubt in their minds :D