This will seem a strange choice, but the 3-0 League Cup final defeat to Celtic in the 16/17 season.
Performance wise we were really poor, didn't really turn up and were easily turned over.
But my main memory was how quiet the support was. Just very few making an effort. I was in amongst many of the old Red Ultras boys and every chant we tried to get going failed, no-one was interested. And it also hit home at the time how few chants we actually had.
Was just a really depressing day. I never thought I'd ever leave a cup final early but we walked out with 15/20 mins to go just fed up. It didn't feel like we were in a cup final at all. Felt like all the life had been sucked out of us.
I've been at all but one of every single shocker - Stenhousemuir, Darvel, Queen of the South, Skonto Riga, Bohemians, both 7-0s to Celtic and the 9-0, and the 6-1 (?) to Livingston. If I'm missing any others, chances are I was there. Think the only one I've missed was the defeat to Queen's Park. But I knew after every one of those that it was a shite result but in time we'd bounce back because we always do.
But that day at Hampden I felt so disenchanted with everything.
A few months later we were totally different in the Scottish Cup in terms of performance and atmosphere. And these days I think our support might be the best it's ever been, and huge credit to Ultras Aberdeen for that.