@Saidtoomuch
Yep, I can kinda relate to that one!
We were on holiday in France and we were in a cafe when two couples turned up and just stood before the seating area waiting to be seated when there was a big queue of people to the side of them ordering food at the counter and taking their trays and sitting down.After they had realised when the staff weren't taking any notice of them that they weren't in a posh restaurant,when they eventually got served,two of them sat down and one of them at the counter yelled "DO YOU WANT A PANINI?" very loudly and then I realised they were English. I remember thinking 'They're only a metre away from you, you don't have to yell!' while we kept quiet, pretending to be French and I pretended to read the local newspaper in case anyone thought we were English and assumed we knew these people.
I sat there cringing as one of them said very loudly later "Ooh, this tea's a bit too hot!"
Saw them later when I went into a shop and as soon as I saw them and turned around and went straight back out again, thinking 'I'll come back later!'
Thankfully that city the English tourists always seemed to avoid for the most part as the guidebooks would tell them to avoid it so that was one of the only times I remember anyone like that as we frequented it.
Also a good few years earlier was on holiday, France again and there was a girl throwing a massive tantrum in front of a lady, I guess a female relative, in an aisle in a supermarket. My friend and I wondered if she was English, couldn't hear what she was saying but it was as she was wearing a knitted poncho (trend of the mid 2000s) as I hadn't seen many French people wearing them. Heard them later on and yes, they were English. The poncho craze never caught on in France, one store ended up selling them 70% off as the French wouldn't buy them and I couldn't blame them, I thought they were awful too!
I prefer to avoid the English abroad as nearly all the ones I've come across abroad are embarrassing!
One more I remember is being on holiday in Austria over Christmas on a coach tour and everywhere was shut as Boxing Day is a bank holiday but the only place open was a Japanese restaurant and my friend overheard someone say "Ooh, we'll get a nice piece of apple strudel in there!" My friend said to me "In a Japanese restaurant? I don't think so!"