If somebody wants to help you with your hamster whether that's cleaning their cage, feeding them or whatever it may be, let them even if they are more of hindrance than a help. You will be surprised at how much you will learn from their way of doing things, how much it will benefit you and how you can incorporate it in with your way of doing things. This is coming from someone (me) who is very set in their ways, must have everything a certain way and has to do things in a particular order. Trust me, it helps you change for the better