Former Rangers star Andy Halliday has lifted the lid on a post-derby wind-up in the Apple Store that left him fuming.
The current Hearts midfielder is out of the Glasgow cauldron these days but as an Ibrox diehard he was a prime target for Celtic fans taking the mickey.
And one young cunning Celt got the better of him back in 2016.
It came days after Moussa Dembele had spearheaded a 5-1 Parkhead victory for Brendan Rodgers' side that would go on to become Invincible Treble winners.
Halliday likened it to the reaction of striker Martyn Waghorn to some goading outside a fish and chip shop, which was caught on video.
But he's glad nobody was filming his own altercation as he told Open Goal: "Oh my days, how have I not told this one? It's similar to (Martyn Waghorn), thank f*** no one ever had a video of this.
"I'm in the Apple Store and I'm with my missus - and how bad is it if somebody gets cheeky when you're with your missus?
"Don't try and treat me like a bam when I'm with my missus. I need to try and fight you now!
"So I was in the Apple Store and some wee guy - I'm talking 14 or 15-years-old - has came up and asked for a photo.

"It was right after Celtic beat us 5-1 at Parkhead and I was like 'aye, no worries mate'. My head was f****** fried.
"So I get in the photo and he goes like that to his mate, 'tell me when'.
"I'm like, for f*** sake, I'll end up getting scanted or something! So his mate goes 'when' and he goes like that (holds up fingers in a 5-1 gesture).
"I just looked at him and the Apple guy is looking at me as if to say, what the f*** is going on here?
"I just went: 'F****** give us that phone, do you think you're a f****** hard man, aye?'
"I gave him it back and walked out! I couldn't f****** do anything! I can't chuck his phone, I can't f****** delete it or nothing!
"So I gave him it back and walked out of the shop."