Turn that frown upside down

I am SO not a sunshiny always happy girl so I really like learning how others cope with minor annoyances and pet peeves.
Louise is a bit of a Luddite and the last person to NOT own a cellphone. She stood in line at the DMV for an hour listening to a guy talking loudly on his cell. Frustrated, she opened her magazine, matched his volume level and began to read aloud. He stopped his call and asked her, "Do you mind?" She said no, I've listened to you for an hour so I thought it was my turn. He returned to his call. She again began the oral story time. He said, "Look, I'll call you back. I can't hear you because some crazy lady is reading out loud. I know, right? Rude." He glared her. She smiled and put away her magazine.
My gal pal Dawn told me the story about her first week working at a very starchy bank where she would greet co-workers entering the elevator. And she was so amazed and taken aback when they wouldn't acknowledge her. I said, "Fuck 'em! What's their deal?" But Dawn has a bit more tenacity. The second day she went forward with the assumption that they didn't hear her the first time and greeted them with a little more volume. Third day, a little louder. Fourth day, the second the elevator doors opened, they greeted HER before she could open her mouth. And she just laughed inside.
It made me a better person to hear that story. Instead of instantly getting mad and writing off someone as rude or inconsiderate, I give them a second (and maybe third) chance for a first impression. A chick in my volunteer organization always seem to shun me. After the third time, I asked her, "Hey, what's the story? Every time I wave at you, you ignore me." She told me that even with eye contacts, she cannot see more than 2 feet away and is constantly trying to pick up the wrong children at the school pick up car lane. Without Dawn's lesson, I would have just chalked her up as a bitch.
Now, if they still aggravate me, I am most definitely gonna jack with them. Like this,
Jennifer Worick of Things I Want to Punch in the Face ranted about those too numerous little subscription cards that fall out of every magazine. I didn't even know there was a name for them: blow-in cards. Here is MY suggested way to cope:

I write the most awful, horrible jokes on them. Jokes I would NEVER say aloud. Then I mail them, all the while laughing that the publisher just paid for the postage and one of their employees will be scarred for life or at least the afternoon. I figure eventually a lawsuit will happen and the employees will get special pay for having to read hateful bile. It's a win/lose/win.

Here's hoping you take that peeve and turn into a perk.
Have a great weekend!