I'm not proud of what I stupidly tried to do but let it be a lesson to us all they really can be dangerous especially if you think for one second it will be ok to try n reduce puffy-ness
my usual Zippy Compacts have been well hammered and show no signs of that crap - but if they did I wouldn't try that fuckwit thing of try to expell the trapped air - no sir bad - very bad stupid idea