By Andrea Blazquez A flight attendant has urged travellers not to use one of the most common items when staying in a hotel. Members of cabin crews, especially those who work on long haul flights, spend an awful lot of time staying in different hotels across the world. In doing so they learn many tricks of the trade as well as things that guests may want to avoid. Most hotels have kettles for those guests who want to enjoy a nice cup of tea or coffee in the comfort of their room. Dutch flight attendant Demi shared a video on her TikTok channel @demibonita in which she urged people never to use …