Kitten huffing is a controversial practice that has recently been growing as a popular and healthy alternative to street drugs. Despite a long history in Western culture, the practice remains largely taboo. Excessive huffing has been known to produce undesirable side effects, including addiction, damaged sinuses, corrupted brains, which may lead to someone thinking they're something they aren't, and, in some cases, death. It is a general rule of thumb that anyone who huffs more then 3 kittens a day is an addict. Veteran huffers often caution against huffing more than a couple kittens per day as overdosing can be very unpleasant and quite dangerous.