Most of us have showered, at one time or another, in a hotel shower-bath combo. Usually with shower sandals on. But we're willing to bet that not too many people are brave enough to actually take baths in one -- especially when it's not perfectly clean. And when it's really, really not clean -- we're talking soap scum, grime, mold, rust, or even unwelcome critters -- the thought of even showering in it makes us shudder. Below, take a look at the hotel tubs you couldn't pay us to bathe in.