There is no simple answer to this question. It depends on how much you inhale and what kind of insecticide you're sniffing. In large enough quantities any insecticide will kill you, just as it does the bugs. Almost any of them will cause cumulative damage if you sniff them regularly. No matter which it is, cumulative damage will eventually cause you harm or death.
Not a lot
You get high.... America these days.
Depends what type of glue.
You can get high.
If you do sniff propel powder you will have VERY intense burning in your nose, I've had people tell me all about it.
My son is sniffing deodorant . How can to stop it
You get a sweet scent sent up your nose.
YOUR STUPID and u will blo up
Chuck Norris comes and whoops you upside the head
You end up like a boong