The Terrible, Horrible, No Good, Very Desperate Bus Ride

Years ago Jill found herself desperate on the bus on a school field trip and vowed that it would never happen again. Now years later as Jill is all grown up and going on a trip to one of the women's Marches in Washington DC she will find history repeating itself when she finds herself desperate to pee on a bus with no toilets for five hours and a driver who is tripping balls. What's a girl to do when your bladder is about to explode but there is no toilet anywhere in sight?