On an airplane flight this past summer, the guy in front of me reclined his seat until he was practically resting his head on my chest. I politely asked him if he would please put his seat up. He just looked at me and said, "No."
I then turned my air vent on full blast and aimed it right at his face. When he reached up to adjust it, I pushed his hand away, "Excuse me. That's my air vent. I like it that way."
He ended up leaning forward the entire flight, but left his seat back reclined practically to my chest. We were both uncomfortable the entire flight, but neither of us would give in. As my wife put it, "So, this is what happens when an inconsiderate jerk meets a passive-aggressive idiot."
I was in Walmart once and this kid was screaming. I tried to ignore it. I thought about asking the parent to quiet the kid down (you could hear him through the whole store).
Finally I just stood at the end of the aisle they were on and started screaming back at him. The mother was horrified, but after about ten seconds of yelling back and forth the kid finally stopped.
3. The earphone fairy, that's how.
One time my sister stole a pair of my headphones and lost them, so I got back at her by tying her earbuds in knots every chance I get.
Every time she went to use her earbuds they'd be knotted. She'd yell, "HOW DOES THIS ALWAYS HAPPEN!?" But little did she know what I had done. There was no greater revenge.
4. You can only ignore something for so long.
I live on a typical American suburb street. My neighbor just got a new job with a company provided vehicle.
He has a one lane driveway so he parks this huge work van in the road, directly in front of my house. It is all I can see when I look out the front window. I casually mention it to him how he could park in front of his house and not mine.
He just chuckles to himself and starts talking about something else.
For the next week I parked my car in front of his house to see if he enjoyed looking at my car everyday. Luckily he got the message and now parks in front of his home and not mine.
5. A hairy situation.
Whenever my roommate shaves, he always leave little bits of hair in and around the sink. As other people's hair has always made me cringe, I repeatedly asked him to stop... but there would always be hair in the sink.
So, I waited. For three months I grew my pubic hair to the most glorious length it has ever been and shaved it all off into the sink and left it. I haven't had any problems with my bathroom since then.
6. WAKE UP.
The neighbor in my girlfriend's apartment will let their alarm go off for a good 5 minutes before they even try to stop it. They don't hit snooze like a normal person. They just lay there and let it buzz over and over and over again.
It was going on longer than usual so I ended up pulling out my phone and turning on the "meltdown" alarm and basically pressing it directly into the wall. On top of the horrendously loud noise, it was also buzzing the whole wall.
They turned their alarm off within 10 seconds and haven't done it since.
10. Good try there.
I was on the receiving end of some epic passive aggression once.
I was in the "12 items or less" line at the grocery store, and as usual, had counted my items before I got in the line. An older couple got in line behind me, and clearly did not think I had done so. They spoke loudly to each other, I guess hoping to embarrass me - "THAT DOESN'T LOOK LIKE TWELVE ITEMS TO YOU, DOES IT, MARGE?" etc. this continued on, and when it was my turn, one started "LET'S COUNT. ONE... TWO... THREE..." I started wondering if maybe I miscounted, feeling a little panicky as I usually try not to be a douchebag. Then finally, "... TEN. Oh."
The cashier laughed. I needed to do nothing; the backfiring of their plan was plenty.