From what I understand, you stick a tube up your bottom, release the gerbil into it and while it scurries around up there it, ahem, invigorates your prostrate, apparently a fab sexual experience. It is also my understanding that, with the tube in place, the little darling is just fine afterwards. Perhaps it's then kept as a pet and taken out only on special occassions? Gay people, please weigh in and correct any of this which is wrong.