bong smoking

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But if you think about it, you can only get so high off of weed.

This is true, but almost nobody hits their ceiling when smoking the ganj. Think about it, the faster you ingest THC the higher you get. So if you ingested pure THC (or some high quality bubblehash or something) in large quantities in a short period of time, you'd be more "fucked off your tits" than if you kept smoking and smoking and smoking until you passed out. You system simply could not handle all that smoke.