Hardy has his chair, his cutlery, and his towel, and woe betide anyone else who uses them.

Beatty puts up signs in the bathroom with elaborate diagrams of how sharing toothbrushes rots your cock (or something, his handwriting is appalling).

And Nelson gets them up at 6.30am on the dot, every morning, rain or shine, for a run, no excuses, not even if your limbs are falling off.

However, their bed is big enough for all three of them to share without kicking each other in the ribs, so it's not all bad.