I made one to surprise the orcs in the group. The actual players were like 'do we hate him since he has elf blood? Do we fear his human resourcefulness? Oh god the ways of things!'
My only reply was 'Hello, I'm the Doctor. Just the Doctor. All of time and space anything that can ever happen and ever will. Where do we want to start?'
The barbarian: 'With this magically locked door weirdo'