i have dropped things onto my bong before and it will make a loud clinking noise but it doesn't crack at all. does this weaken the glass in the long run? like i have a glass bowl for my glass bong, one time i dropped it a bit and it hit the downstem and i was lucky it didn't break. does this have any effect on the chemical bonds holding the glass together? or does it have to have enough force to break some of the bonds in one knock of the glass for it to have any effect? by hitting glass, without it cracking or showing signs of damage, can the bonds holding it together be weakened? i can clarify the question more if needed.