Stolen bikes

Just had an interesting experience, witnessed two guys on Boris bikes park up either side of a poorly locked MTB outside the Halfords on Mile End Road. I'd just unlocked my ride from beside said MTB and as soon as I vacated the neighbouring rail these guys moved in and sandwiched the MTB. Obviously this seemed weird and they looked sketchy so as I walked away I watched them and noticed one of them had bolt cutters poking out his rucksack. Anyway I stopped nearby pretending to be checking my phone when one of the guys noticed me watching and told me to mind my own business. He went back to his mate, who then got the bolt cutters out and started waving them about threatening me with them, even though there were loads of people about. Anyway luckily a security guard from one of the stores noticed what was going, came over and told them to clear off, but the way these guys were so casual about it amazed me. Broad daylight infront of three big stores right by the entrances, CCTV directly above and they were totally relaxed. What a world...