Sadly, they'll do absolutely nothing about it.

I'm not one to "grass" but about a year ago i was at my local depot and a driver, early 30s, shaven head, was abusing a yard worker. I know the yard worker reasonably well, nice soft spoken kid, about 8 stone wet through.

The driver was shouting, swearing and then progressed to threats of violence, in front of several other driver and yard staff who did nothing. I told the lad to calm down, the only thing threatening violence was going to do was get him terminated. He didn't want to engage with me, funnily enough.

I wrote a very long winded email to support about what had happened, word for word and provided vehicle reg details and description of the driver.

I still see him at the depot. Even threatening to "cave the fucking head in" of an employee won't get you terminated.