NEW YORK -- I don't remember where I got it -- a Marxism Today conference, perhaps (kids, that's what we did for fun in the late 1970s) -- but I have a strong recollection of the mood of those times. It felt as if Britain was falling apart.Every week, there seemed to be an IRA terrorist attack or a transportation disaster -- a devastating fire in a train station, the sinking of a pleasure boat in the Thames. Whatever the cause, as soon as the surviving victims were bandaged up and rendered presentable, Prime Minister Margaret Thatcher would show up at the hospital for a photo op.This filled Brits like me with a combination of rage and terror. Thus, the Thatchcard: "In the event of an accident, the holder of this card wishes it to be known that he/she does not wish to be visited by Mrs. Thatcher in any circumstances whatsoever."I know how churlish that may sound now. I carried around a ridiculous piece of plastic announcing that if one of the leaders of the free world took the time to visit my sickbed, I wished her turned away. In my defense, Britain was suffused with such intense Thatcher hatred that the enmity expressed by Obama truthers seems like a love affair by comparison.I'd spent my elementary school years yelling, "Thatcher, Thatcher, milk snatcher," because I was one of the kids deprived when, as education secretary, she abolished free school milk. Until that policy took effect, I'd spent every morning complaining bitterly about having to drink those odd little bottles of curdling room-temperature milk -- at least that's how it was served in my school -- but that didn't stop me from protesting the reform.Check out Elvis Costello's performance of Tramp the Dirt Down, a song in which he tells Thatcher: "I'd like to live/Long enough to savor/That when they finally put you in the ground/I'll stand on your grave and tramp the dirt down."Why was Thatcher such a hated figure? Yes, it was about her policies -- privatization, the selling off of public housing, her wars against Argentina in the Falklands and against the miners and the working class in Britain -- but there was something else at work. On some level she was hated because she was a woman.Between men who hated themselves for responding to Thatcher's stern, dominatrix-like scolding and women who wondered why our breakthrough female politician had to be a woman like her (though we surely knew that only an Iron Lady could have smashed the mold of British politics), the fact that Thatcher was female complicated things.But in the typical British way, I have always believed that it was her slippery position in Britain's rigid class system that ramped up the levels of loathing. She grew up the daughter of a Midlands grocer in what the Guardian's Michael White called "the respectable working class." Although she famously learned to speak in a posh accent as she climbed the political ladder, she grew up in a house without an indoor bathroom.Although throwing in her lot with the Conservative Party made her a traitor to her own class, the Tories apparently celebrated their colleague's upward mobility -- they did, after all, make her their leader, even if she was never quite "one of them."These days, with the passing of time, the fading of memory, and the spirit of de mortuis nil nisi bonum, I feel guilty about all that hate.This week, when I heard the news, after decades of dutifully shifting the darned thing from wallet to wallet, I finally retired the Thatchcard.June Thomas is a Slate culture critic.