We're programmed as teachers to stick to timetables. Rigid break, lunch and lesson times. As a new office-based leader, I often found lunch and break times being interrupted.
Why? Well, behaviour issues, but it's also when I can talk to colleagues and they can come and find me. Solution? Make myself a cuppa and eat my piece of fruit just before break (I stick the kettles on for everyone at the same time too). Also, eat my lunch just before lunchtime. For me, food is really important. I soon lose energy if I don't have it. I get some funny looks when I'm eating at the ‘wrong time’, but I can cope with that!