Hand signal: "You have a flat tire"

I lived it once a couple years back- a tire shredded. About three people pulled along side and gave me strange waves...I thought they were weird until the third person kicked in my logic and I pulled over to discover that the tire was gone- and I never felt it nor ever saw anything.

This past week, I was following a large mobile home...as I approached it there were little chunks of rubber, and finally it became clear he was the source...and then things were starting to smoke...

I pulled along side, I honked...we could not make eye contact- his truck was much higher than mine...I don't think it's safe to STAY alongside- so I completed my pass and then rapidly shifted from right to left blinker.

The dude kept going- and I understood...you just cant see tires nor their smoke from the mirrors.

The folks waving at me seemed like random waves...I know my efforts to inform the mobile home guy were probably similar- "What's that guy's problem?".

So- I know we won't solve it here- but I've really wished the trucking industry would develop an "official, recognized signal" for "you have a flat tire" (or you have a trailer problem).

I would think there'd be options of a turn signal sequence or brake light flash sequence or headlight flashing sequence.

...anyone with thoughts or similar stories?