No problems on someone else playing my character temporarily on the off chance I go on vacation and I don't bring either my laptop nor my phone.
Edit: I just want to add that I'm pretty much done with the character in general. I just need to put the finishing touches (knowledge skills, contacts, etc.) before final submission. If the GM wishes to, I could send him the character's backstory. And don't worry: Mickey is far from a beautiful and unique snowflake
