Early warning system...

I've been laughing to myself every time I see these posters. 

They're a web find from Etsy sellers Bexpert of nautical code

flags and their meanings. 

Maybe I have a deranged sense of humour, but 

don't you think they'd be hilarious t-shirts?

Nothing like clearly stating your intentions... 

Just running that up the flag pole ;) 

If they tickle your fancy, you can find them here.