Decided to see if I could make a "Macgyver" bomb out of a two liter bottle and toilet bowl cleaner that I had been hearing about on the news. Didn't have enough toilet cleaner so I figured muratic acid would work just the same. Imagine lighting an M1000 with a 1/4" fuse and that pretty much sums up the outcome, luckily there were no injuries.
It really is necessary to use the primer when cementing PVC together. Especially on potato guns.