I thought this was brilliant...
http://uk.news.yahoo.com/slow-down-huge-30mph-sign-painted-house-125205013.html
and maybe they should ride a bike...
http://uk.news.yahoo.com/vandals-blow-parking-meters-080537174.html
Also statistically Edinburgh is in the top 10 (at #10) for getting your car vandalised, and most targeted are Lexus, BMW's, Audi's, Mini's and Mercs...all the cheap cars then?