Clet Abraham is an artist who has taken to vandalizing the street signs in Florence with easily removable adhesives. The stickers resemble different and sometimes controversial things, such as Jesus on the cross and devils. There are a lot of different thoughts on his work, but most people find it amusing.
Authoritative figures do not like the idea of adding stickers to street signs and have even charged Clet Abraham with a $400 euro fine! That is a hefty price to pay for expressing your thoughts!