Last spring at the playground, my daughter was digging a very serious hole with her yellow shovel when a confident four-year-old walked up, took it straight out of her hands, and kept walking. My daughter froze for a second, then screamed like she’d been robbed. Which, from where she was standing, she had been.

And I did what I thought good parents were supposed to do. I crouched down, put on my calm voice, and said, “We share our toys, remember? He can have a turn and then you’ll get it back.” I retrieved the shovel — the kid had already dropped it and moved on to the slide — and I made my daughter hand it to him. She howled for twenty minutes. He played with it for about forty seconds. Twenty minutes of screaming for forty seconds of sharing. Fantastic trade, me.

Here’s the thing nobody told me: forced sharing doesn’t teach generosity. It teaches that your stuff can be taken and the grown-ups will help take it. She wasn’t learning to share; she was learning that the shovel wasn’t really hers.

So I stopped forcing it. Cold turkey. And before anyone pictures Lord of the Flies at the sandbox — we replaced it with two things that actually work.

First: the comfort toy is sacred. She has a grey rabbit with one chewed ear, and that rabbit is never, ever up for sharing. Not with cousins, not at playdates, not ever. I tell the other parent upfront, casual as anything: “Everything’s fair game except the rabbit.” Nobody has ever objected. Having one thing that’s fully, unquestionably hers made her more relaxed about everything else — I think it lowered the stakes.

Second: turns with the kitchen timer for everything else. Not “share nicely” — that’s meaningless to a three-year-old. Instead: “Three minutes each. The timer decides, not me.” I set the timer on my phone where she can see it. When it dings, the toy changes hands. The timer is neutral. I’m not the villain, she’s not the victim, and the other kid isn’t a thief. It’s just the timer’s turn.

The timer backfired exactly once. She figured out she could grab my phone and set it to thirty seconds when it was the other kid’s turn, then announce “DING! My turn!” with total innocence. I caught her mid-swipe, we both laughed, and now the timer lives in my pocket where small hands can’t reach it. Honestly, I was a little proud.

The rabbit, by the way, has survived every playdate untouched. Last week her cousin — who is five and an experienced negotiator — offered her a whole bag of gummy bears for “just one minute” with the rabbit. My daughter hugged it tighter and said, “He’s not for minutes.” I don’t know where she learned the concept of non-negotiable boundaries, but I’ll take it.

Did it make her generous overnight? No. But the screaming stopped within a week. And last month at the library, totally unprompted, she handed a crayon to a little boy who was crying because his had rolled under the table. Nobody asked her. I had to turn around so she wouldn’t see me getting emotional about a crayon.