Some odd factoids about the B.O.B.:
A heavily loaded down B.O.B. is the quickest way to test whether or not your rear wheel is in true. (Source: Personal experience of toting a full Thanksgiving grocery run home on my bob after having my bike's rear wheel get toasted by a parallel sewer grate.)
If you encounter a drunk cyclist named Bob, he might be impressed to find out that your trailer is named after him. (Source: a drunk cyclist named Bob.)
If you have a Bob, always lock up your rear wheel, even when the bob isn't with you. if your rear wheel is stolen, your bob skewer is gone also.Replacement skewers can take a long time to arrive when special ordered through a bike shop. (Source: Friend, not named Bob, who had their rear wheel stolen.)