Q. I come to London every May and hold a drinks party in a friend’s flat. What will have happened is that many of your guests will have shrunk physically in size since last year – due to being on fat jabs. Since she is a one-man band, it is awkward for her to chase people who are friends or friends of friends. Let Laura Bennett do the chasing of unpaid invoices – all by email of course and never by phone. It can be Laura who gets angry if her invoices go unpaid while your daughter can feign ignorance.