Yes, Irn Bru both times. One regular-sized can going to Tennessee, and one small in-flight size the stewardess had given me as an extra on a Gatwick/Glasgow flight, and I'd forgotten about it and shoved it in my holdall, and it was still there to get zapped in the hold on the return leg. I can't say I wrapped them deliberately - especially the second time, it was a pure accident, I wouldn't have deliberately packed it after the first experience.
Both punctured in much the same place, in the middle of the side of the can, the puncture at the bottom of a pretty deep dent. And the surrounding underwear soaked. Fortunately the small can didn't have enough in it to get as far as more delicate items elsewhere in the bag.
Rolfe.