Lamb is not even a smart liar for not having done her homework.
I've heard far better ones from the kids at school that I once taught as excuse for no homework than my mum didn't pick me up one afternoon from school when I was 6 and I've not seen her since. Boo hoo!! Wouldn't work for 16 year olds leave alone a 45 year-old woman whose employment depended on that homework and the answers provided therein.