Inspected a culvert under the railway at Batley once, we did a recce on surface before we went in and found that the culvert passed close to a footpath to a railway footbridge with a graveyard at the side, we went into the culvert and crawled about 300yds where we could see daylight in the roof, looking through a crack between gritstone slabs I could see the footbridge and realised we were at the side of the graveyard, then looking the other way I could see two council workers walking down the path, they stopped at the side of the slabs and lifted a drain cover at the side, one of them put his down the drain to clear it out and it appeared in a pipe at the side of my head, so I grabbed his hand and held on, the poor guy nearly shat him self, screaming somethings got me, his mate ran off and when I let him go he legged it also, cant imagine what was going through his mind, and I wonder if people believe him when he tells his version