LOL !!!!! now thats funny . if only i had heard NOT to put the expanding foam in it earlier .
when i first tried to use it to give my pack some weight and firmness , i used a little to much and it did infact bloat like road kill .lucky for me i was watching it bloat and was able to stop it in time .
i was able to scoop most of it out with a laddle , then used it sparinglly and it did work out great .