I remembered an old story while telling one from around the same time on a different thread.
I used to work at a posh supermarket as a till girl, and one day there were horrendous storms. Unfortunately the positioning of the building and the drains meant that the shop began to flood due to the volume of rain, and the sewers backed up soon after. We evacuated the shop, but the staff held back to turn off as many electronics as possible and make sure there were no live wires in the water. The scent of, well, sewage, was high in the air as we did so.
I'm just taping up some wires to make sure they don't get wet, with my manager nearby putting down cardboard boxes to make a makeshift bridge to the doors for the staff still in the building.
Suddenly, I hear "Ah!" *SPLASH*
My manager had fallen over, and was now sitting down, in and covered by water. Sewer water. Filled with sewage.
When I trusted myself to speak, I called out "You alright?"
He replied "Just go".
He had to walk past pretty much all the staff to get out...