Getting caught by one of my worst habits...
'Talking too much'.
I've seen that while my style makes it possible for me to talk more than an average magician and still manages to make my trick look good, I still kinda hate that habit and keep trying to minimise it. But in a high-pressure situation, boy oh boy! I am always afraid if I talk SO much that the trick begins to look secondary to the conversations I'm having...
And of course, I am afraid of bad reactions, as in BAD reactions. Ho-hum responses don't break my heart but the bad ones do. Touchwood...never really got a bad reaction but, I can visualise what might happen if I do get them, and that visualisation stuff is nasty.
Also, I think getting caught is pretty much a no-no (?). Unless it is intended, of course...