Years ago I was told that if you had a household help or maid here in South Africa, you would slowly find that your pairs of socks became singletons, the theory being that the maid would have removed one and would then wait for you to throw away the other. Not so! I haven’t had any help in the house for 18 years but when I did a wash for small son the other day there were no less than 12 single socks afterwards! That must be some kind of record. There is still no sign of the missing ones.