A twitter poster has found a forum dedicated to male wearers of women's lingerie. M&S features heavily:
twitter.com/worriedmumofone/status/1264316614637498372?s=19
"1. This forum is for Male wearers of stockings & lingerie and discusses specifically how to target M&S, best times to go, easiest stores to access, you name it. Sample user photos attached for reference below @Baroness_Nichol
t.co/YDo3dgB29w
t.co/RqO4Zk5SUK "
"Bra fitting around young girls: t.co/RqO4Zk5SUK "
"User tries on “in broad daylight” in M&S
t.co/NJMMvgOSsh t.co/bTRFOVkVgX "
t.co/YDo3dgB29w
"General advice on how to target M&S. Assistants “really couldn’t care less” about you and the “thrill of your first lingerie purchase” t.co/N1McuWlJ0m "
"M&S is great as it’s full of families and no one bats an eyelid if you check the crotch of lingerie for stretch to accommodate the Male form. Staff don’t care he says. Adds to the thrill he says. t.co/dd4g8pQMXe "
"M&S Metro Centre, North East is the hot ticket to get sexual thrills around innocent customers - same types that use our changing rooms there apparently
t.co/HI9yb7eSjE t.co/2GVLTQEV7A "
"Worcester M&S - zero respect for boundaries of staff that work there from these men t.co/9rxvbyy7Bd "
"Shrewsbury & Merryhill branches are good targets for men to try on “sexy panties” as look... the staff don’t care t.co/YmzFacyVD2 "
"https://t.co/yVov6JVPVO Cardiff M&S - trying on panties and sharing photos online. Seems to be a thing on StockingsHQ. t.co/YmOuXfQiDv "