 Zoe Arbour can't help it. A transit rider who favors Metrorail, she's always been a little grossed out by the cloth seats on WMATA's Metrobus fleet. It could be because she's a chemist. So I think about bacteria, I think about viruses, I think about bugs. I just feel like they've got to be in there. Danielle Pintard agrees cloth seats just don't clean up well.