This is how to be a polite neighbor, in the most passive aggressive kind of way. I saw it on Uptown SF, and it cracked me up... "Have you ever seen Star Wars?" That's what makes it so brilliant.
And incase you can't read the writing, check it below...
Letter from my neighbor:
I know you just moved in recently- but please quit walking on your heels... This place reverberates every step. I would really appreciate it. It vibrates my whole ceiling. It's an old bldg.
your neighbor =)
Thanks for the letter! I've always wanted a pen pal. I just wanted to come right out and say it, I'm a person. I saw that you requested I stop walking on my heels, but because of evolution, I'm afraid that's the only way I know how to walk. For your convenience I'm including a list of animals that don't walk on their heels. I'll even draw a chart to scale for you.
Of course, right off of the bat (that's a saying, I don't actually play baseball), I thought of the velociraptor (of Jurassic Park fame). They're a lot like cats, except for the lack of fur, whiskers, cute little purring and their tendency to play with fake mice. Anyway, dogs, mice, scarecrows, real crows, and sharks also do not walk on their heels/cannot walk/do not have feet.
I hope you find this information helpful, and sorry about the chart, but I drew it life-size and I'm afraid this piece of paper only covers the size of a dog's belly.
'Guys' <-- I can't believe you already have a nickname for me.
P.S. We're not really "bros" unless we are! Weird. Have you ever seen Star Wars?