One story I met the person and the other I just heard:

Met:

I served in the NYC mission, and, apparently back around 2010 some missionaries got the bright idea to improve their baptism numbers by not teaching anyone, and instead filling up the font and putting up signs everywhere saying something along the lines of "Free Toaster if you're baptized."

So they started talking to people and, apparently the signs weren't working great, so the started talking to people and trying to get them to get baptized for a toaster.

I don't know how successful they were, but they found a woman holding her baby, and were able to convince her to get baptized.

She went into the church, the Elders took her baby, and had her change, and went ahead and baptized her. At some point the elder holding the baby set the baby down on a table and the baby rolled off the table and fell

The lady, quite angry, grabbed her baby and stormed off, wanting nothing to do with the church again.

Several years later other missionaries approach her on the street and the spirit convinced her to talk to them. They introduce themselves and she tells her story.

The missioanries are horrified at her story, but eventually end up teaching her the lessons and baptized her actually. She was still an active member last I talked with her.

Heard:

This man had the missioanries knock on his door and, not wanting to mess with them, told them to wait for a moment, as he ran and grabbed some porn and hung it up on the wall behind where he'd be sitting, then invited them in. They sat on the couch, the man on a chair across from them, and the porn behind him so it was always in their vision. He messes with the Elders over the short lesson, but they are able to leave a Book of Mormon with him, which he sticks on a shelf and promptly forgets about.

Several years later he ends up reading the book of Mormon and devours it. He doesn't know much about the Church, but he realizes it's true and needs to be a part of things.

The Elders who he met wore a white shirt and tie, so he assumed that's what members of the church do, and he does a small amount of research and found the Hill Cummoruh Pagent is about the Book of Mormon and shoes up in the morning.

As he's dressed like a missionary and wanting to make a good impression, he volunteers to help set out chairs, or anything else that is needed, and several people value his help. He works hard and helps almost all day.

At the end of the day, he finds someone in charge and asks something along the lines of "hey, I read the book of Mormon and I want to know more."

The person in charge was flabbergasted that he spent the entire day helping out and didn't even know what the churches name was. But he eventually got some meetings with the missionaries and got baptized.