My God, that's the third one this week. I'd better learn something about this. If those symptoms persist, call for an appointment. I've never heard of anything so disgusting. Any person caught smoking in the lavatories will be asked to leave the plane immediately.
Humans begin laughing at two to three months of age.
Six year olds laugh about 300 times per day, while adults laugh from 15 to 100 times per day. It should function for a year following that date. Phillip Bower is not the author of the humor, and does not claim to own any copyright privileges to the jokes. Sources of jokes are listed when known. Birthday's and Happenings for the date, and quotations are public knowledge and collected from numerous sources.