Wearing Vomit Pants

In a previous discussion here about Coughing in the Crook we discussed the use of special “Vomit Pants” that are worn when one takes public transportation.
Some train and bus seats are created completely of plastic so it is a simpler task to avoid a puddle of urine or that bit of dried vomitus waiting to stain your slacks.

The newer busses and trains, however, cleverly use an industrial strength fabric that conceals most disgusting human remnants and provides no visual forewarning before you sit and, therefore, Vomit Pants become the required uniform of the day to avoid messing your good clothes in the muddle of others.

Do you have a special pair of Vomit Pants you wear on the train, bus or airplane to preserve your real outfit for the day? Or do you just risk sitting in someone else’s spew and piddle and let your pants be damned?