Ha, I will never forget going on excursion once with my husband. We were at the beach with a lot of school children, and looking at crabs and things in the rock pools - like a marine biology thing.

My husband was looking very intently at something, which the marine biologist noticed. He thought it must have been a sea creature or a shell or something important. He said, in front of like fifty students and six teachers: 'what have you got there?'

To which my husband replied 'It's a stick shaped like a dog'.

Some people laughed, some people turned away.