We are looking after a male hamster for our landlords/neighbours, mainly for company (they have five house rabbits that are being looked after at home by a rota - including me - of neighbours/pet sitting company) as otherwise he would be in a room by himself all day. I volunteered as have ten years experience of pet rabbits and also babysat my housemate's hamster at uni.
However the hamster is not happy. Every time I fill the food bowl (on fourth level of cage) he will empty all the food apart from a few crumbs and take it down the chute to the ground level and hide it in either his toilet box or his little house (small box inside ground floor, detachable). He's done it three times so far, with food the LL said would last three days. We've had him since Thursday evening. On Thursday at handover point he was happy and ate sitting in the top, one bit at a time.
Yesterday evening we discovered a yellow puddle (slightly pearly colour, creamy yellow) on another tier. Frantic googling has reassured me it's not wet tail (I think - I don't want to wake the hamster up now to take a look, but will double check later when he comes out). I'm only used to rabbit wee so it looked off to me, but maybe it's a normal colour for hamsters? The only variation in his diet was a tiny bit of carrot (okayed by the LL) 48 hours before the wee.
I'm not sure what to do for the best. I can return him home and look after him there, but don't know if it's the lack of LL that is making him upset (all the bunnies are upset - skittish, pooing and weeing everywhere, despite lots of people dropping in to give them cuddles and food). The pets are our LL's children. They are abroad atm so it's not practicable to contact them unless it's a life or death emergency (mostly not to worry them - they are there for a family bereavement).
Water is changed every day, am cleaning the cage today, litter box is emptied when dirtied and refilled with litter and food is only what the LL has given us (+ one bit of carrot). He has been using his wheel.
Does anyone have any ideas please?