Was caught up in both - total delay 100 minutes today -_- (I know cricklehood wasn't GTR's fault).
On a train this morning (we were held at Elstree), we were told 'hit by a train', the screens in London say trespass incident (but they've said that when it has been a fatality too). 40 min delay, but it was only in the last 10 mins we got clarity. Driver kindly opened the doors at Elstree tho.
This evening, I got Blackfriars when the trains were already starting to queue up. No trains left going Northbound for an hour. We were told it was a problem with the doors, but it seemed to take much much longer than normal to get the train moved out of the way. The station announcements were absolutely endless (and didn't really give any additional info for 45 mins).
And I'd only been thinking yesterday that there had been a good run of performance...