People who watch anime in Japanese language where there are subtitles. They say English dubbed anime sounds off and ruin the anime. Some say in English dub anime there's not enough passion or effort put in voice acting.
The state of mind engendered by any level of sleep deprivation, most notably accompanied by a highly likelihood of laughing--often hysterically--at something that, with a normal night's sleep, would normally be categorically unfunny.