I have / I haven't

[Xintendation 360]

No.

Have you ever heard a rumbling noise outside and looked out the window to make sure it wasn't a giant rampaging monster? I have. O_o

 

[Unforgettable]

No.
Have you ever jumped on one foot while juggling?

 

[BeachBoy]

Never have, never will. o_o

Ever see that Free Naruto Cursors ad?

 

[Unforgettable]

All the time D:
Every just wanted to randomly get out and leave for a while to a place where no one knows your name?

 

[Ho-Oh]

Never...

Have you legally changed your last name?