Chara's so used to not caring about their limbs that the thought hadn't occurred to them they might want to stay intact.

Now they're sitting in a sink full of muddy water. Cold, but ragdolls naturally have a high tolerance for that. Feels like blast of air conditioning on a summer day in liquid form, really. This water is nasty though, with all the mud from their body squeezed into it. It's sort of like lying in a puddle at the dump. Yuck.