Over the Christmas period, discovered mice droppings in the drawers at floor level and on top of the table and hob, despite having an ultrasonic mouse machine switched on. It is the first time since we started motorhoming in the early eighties that we have ever had these unwelcome guests. Anyway, put down a couple of traps and caught two of them. The only place I could see where they had got in was on the rear wheel side of the entrance step where there is a slot cut in the floor for all the cables to enter the inside of the van under the fridge. I pumped in a heap of expanding foam, and touch wood, seem to have got rid of them. Just a warning if anybody else suffers the same problem.