I’ve served ad a hold down and/or counterweight a time or two, yes.
NEVER at freeway speeds though!
About twenty years ago I read a story about a guy in the Seattle area hauling a mattress in the back if his truck. His wife laid on top to hold it down,,, till air caught it and lifted her and the mattress out of the truck. Never found out if she survived.
I’ve served ad a hold down and/or counterweight a time or two, yes.
NEVER at freeway speeds though!
About twenty years ago I read a story about a guy in the Seattle area hauling a mattress in the back if his truck. His wife laid on top to hold it down,,, till air caught it and lifted her and the mattress out of the truck. Never found out if she survived.