I've only sat in amongst opposition fans twice, at Easter Road and more recently the Allianz Stadium in Vienna.
At Easter Road, a Hibs fan recognised the boy I was with (as a Rangers fan) before we'd even found our seats but thankfully didn't shout about it.
Lafferty scored and we won the league and it's the happiest I've ever been at missing a goal (I was at the toilet).
At the Allianz Stadium, the Rapid Vienna fans knew my old man and me were Rangers fans but we kept quiet and weren't bothered. I think I mentioned the war a couple of times after they scored.
Not something I want to do again.