Brother: when I saw you last bank holiday, as I was leaving, I nearly tripped over the dodgy step at Mum's house. I was in a rush, but you promised to fix it. Lo and behold, Mum trips over said dodgy stair that you 'forgot' to fix on Thursday & had a trip to A&E. Luckily nothing broken, but I will fix it over the weekend, in case you 'forget' again. (I live 20 miles from Mum's home, he lives 500 yards away)