At SMA theres a member whos had a few packs blow up, the best part is knowing when one is going to blow and then seeing it blow!!
Not to be mean but it is halarious to see what carnage follows eg. it blew in a mini once the body landed on race control

and i had a cell casing land on my table. Another one blowing and then after being remove another cell hissing and smoking then BANG! i have pics on my phone of the burn marks on the bricks!!!
I think some people just need to take care of their packs better, when my packs vent i don't touch them, it just seems too dangerous to me!!
Although that being said is it a specific type of cell? My dad brought 2 4200 fantom packs for a challenge cup and probably not even 6 months after both packs had venting cells!!