I have a really gross one........ wanna hear it......... too bad Im gonna tell it anyway.........
I too was a car sickkie person from around 7 to 11 years of age. Brought on mainly by dads habit of overfilling the petrol tank, the smell would come into the car.
Before each trip, dad would lovingly take me aside telling me that 'if YOU get FARKN sick them Im gonna FARKN KILL YOU!!' of course I was always very relaxed before we set off.
Well the best one.... I ate purple grapes at school (silly mum) a whole heap of em. We all got in the car that afternoon, I was put in the middle of the back seat, bro on one side and sis on the other. Prepared as usual my parents did not put a bag or bucket in the car.
We head off and about 2hours into the trip, I start going green, dad begins to yell threats from the drivers seat (NO pulling over in those days) and I of course look straight at my big bro as I hurl my purple grapes up and all over him......
He was a complete arsehole as a kid, so it was only fitting that I put him in the firing line....
Have a safe trip and enjoy yourself..