Other common myths:
that Trees produce electricity from leftover root juices which they use to light up the forest when no-one's looking, or sometimes at Electric Picnic. They actually don't.
that Dogs enjoy walks. They don't. They just like making you suffer.
that Leg cramps can't last more than a few minutes - they can actually go for days - even when you haven't been silly enough to indulge in exercise.
that Any decision is better than indecision. Simply not true. Indecision can be great, I think, at least sometimes.
that Patricks day is the only day off Lent. Not true - in fact every Sunday is a day off too - there are 46 days from Ash Wednesday to E - day - and 40 days in Lent. The Sundays are free.
that Fair City is not the greatest program in the universe. It actually is, at least as good as anything else.