Mucking QQ preflop

[pokerscab1]

Have about 10,000 in online tourney.
Blinds around 200-400. (This was the first time I mucked QQ preflop, while ago and details are sketchy, but we're in the ballpark.)

UTG flat calls. Three off the button raises to 600.
I re-raise from the button to 1600 with my ladies, then limper goes all in for either all my chips or very close to it. Original raiser calls and I muck. UTG stinks of AA and sure enough, that's what he flips over.
Guy to my right had JJ, and in his case, he definately had a clear fold.
Am I playing too scared? I've mucked QQ in probably 4 spots in my poker career while playing no-limit, (5years)and I've been right 3 out of the 4 times.
Anyone else fold in that position?