Titillating hexes

I've been using hex post-its for a while, and think they're fantastic. I was therefore very amused to find my partner had bought this T-shirt.

Another interesting observation I've made is that IT people don't seem to cluster hexes very well. They sort of overlap them and get them all wonky. Maybe they're just so use to putting things into rows and columns that they find it hard. Other people (scientists, managers etc) seem to do it with no problems.

Also amusing is that when I use the word 'tesselate' to explain why we use hexes, most non IT people find it very titillating, and snigger things like "I don't actually think it's appropriate to tesselate in public...". IT people however are totally familiar with the term and don't find it funny at all.