If it’s an excuse from the wife/family just say you are nipping out to the shops.
Come back 2hour later and say it was a nightmare, everyone had the same idea, queues were massive, and you could really have a proper look so you just bought a box of chocolates (need to come back with something other than COVID 19).
Work first time, second time, haircut, take a pair of clippers and get the WG to give you a trim.