All general surgeons will do hemorrhoids, anal fissures, and the like. The procedures that set a colorectal surgeon apart are all of the crazy surgeries for IBD, colon cancer, and ostomy stuff. Never saw urology come in for any cases. They were there once to repair a ureterotomy performed by OB/Gyn during TAHBSO; colorectal came to repair a big ole enterotomy that they also provided.
Gotta defer to Ollie on this one. Colorectal surgeons typically take general surgery call, maybe even trauma call (depends on the institution, but I've seen C/R be the trauma backup team quite frequently).
While their lives tend to be more tame than CT, Vascular, and Trauma, most C/R surgeons that I've worked with seem to work pretty hard.
Caveat for all readers: if the word "surgeon" appears in your job position, don't expect to work from 8-5 M-F. Even the cushier areas still require a fair amount of call, weekends, and tough patients, especially when you're building a practice. Lots of people seem to be looking for the surgical practice where they can work 50 hours per week and never take call. There's one job that allows that: Derm MOHS. They might call it surgery, but I sure don't.