Hi Bob
I don't think i'll get a mouse as a pet, I was more concerned for Maurice than actually keeping him just for myself. I do feel so much better putting him back in the shed though and thanks again for your advice and the lovely welcome you have all given me. Methinks I will hang about this forum and see what other interesting things I can find out.
Oh by the way, I took a picture of Maurice the day we found him so I will try and post it for you all so you can see how cute he is. I do hope he'll be ok and find some more mouse friends to play with.
Luv Helen x