It's no secret that I despise ads. I go out of my way to block them where and when I can. I run a Pi-hole on my network, run uBlock Origin (and some other) extensions in my browser. I avoid any product mentioned in a YouTube sponsored segment (y'all already know which ones I'm talking about).
One ad (that I've noticed so far) has managed to affect me and caused me to buy it's product. I was in the grocery store the other day and found myself in the ice cream aisle. I saw a box of Klondike Reese's ice cream bars. I have never had a Klondike before this. Instantly I thought of the tagline "What would you do for a Klondike bar?". I have never seen a Klondike ad on TV/radio/movie, but I had seen tonnes of memes with the tagline in it. It has its own page on Know Your Meme. It's also referred to in some music. I thought to myself "why not? Let's see if it lives up to the hype" and grabbed a box.
It wasn't until I got home that I realized I had fallen for an ad. I had fallen for an ad through memes, of all things! For the record, it did not live up to the hype.