... had a little poster hanging at the windows. I guessed, that the old, rusty Polo was for sale and went to have a look, how much the owner expected to receive, for his metal scrap...
Look what was printed there:

For the non German reader, paraphrased:
Dear car burglar!
My car is NOT suited for being cracked!!! Anyone cracking this car, would even steal from the homeless.
If you anyway feel to break this car again, now and then, please take at least the garbage out.
Thanks!