(a little context: Arthur just yesterday returned to Earth... 8 months time has passed on Earth since his departure)
Arthur awoke feeling wonderful, absolutely fabulous, refreshed, overjoyed to be home, bouncing with energy, hardly disappointed at all to discover it was the middle of February.
He almost danced to the fridge, found the three least hairy things in it, put them on a plate and watched them intently for two minutes. Since they made no attempt to move within that time he called them breakfast and ate them. Between them they killed a virulent space disease he's picked up without knowing it in the Flargathon Gas Swamps a few days earlier, which otherwise would have killed off half the population of the Western Hemisphere, blinded the other half and driven everyone else psychotic and sterile, so the Earth was lucky there.