My grandfather taught me the following version, only slightly different

When you're in a railway train, never look out of the window pane
cuz i was in a carriage once and did it to my regret..
one of the passengers said to me
just look out of the window and see if the train has started yet
sooo i looked out of the window and my hat it blew away,
i leaned out to get it like an idiotic jay,
my pants were tight and they bursted and the passenger said behind
oh! what a very short shirt you've got you better pull down the blind!