The usual reason. I have too much fuckin' weight. Need to work at getting this spare tire off...

...Spare tire being a euphemism for being fat around the waist. [He drums his stomach with one hand. Yup, that. But since Shadowmaru is an AI, and he's used to Connor's occasional confusions, he chose to explain it.]

Just give me the address, I'll detour by a store, see if I can save your head from the biggest louse I've ever fuckin' seen.