I had the misfortune to be on a Cross Country Voyager which hit a jumper at Tamworth. The station there is a favourite jumper spot due to fast through trains.
Although I was in the rear carriage it really did feel as if we were derailing. After a long delay, a really long delay, they took us forward very slowly to Burton, where we got off. The train then went back to the depot which is between Burton and Lichfield. The mess on the front of that Voyager and the large hole was very sobering.
