Totally agree, he did exactly the same for me. He was polite, he was funny and he even signed my cousin's photograph from 'Mr Flibble' as well.
The same for Norman Lovett. Lovely bloke, chuffed to have met him. I have to say, all the Red Dwarf guests so far have been such awesome people. So down-to-earth and friendly.
And the same with Wayne Pygram. He even doodled over my Tarkin picture to make it more Farscape-y since he'd run out of Scorpius ones.
Lovely blokes.