The Pec, I went to the hospital, they just put me in a sleeve, and some Homopathic crap, Arnica, topical and oral. Hot and cold salt soaks. Took about a month, but I didn't start benching again until about 1 year later.
That was in 1994 and I just recently got over 315, last week I did 10 reps w/315.
On the quad, I just gave it a little rest, didn't see the doc, and that was it, nothing really major, it did happen twice though, but it was when I first started training again. (I took a 7 year layoff)