flyers and ads litter campus

Since we're talking about ads in schools, here's a little story from another campus.
Illinois state University has an ad-littering problem. Chalked slogans and duct taped signs are against school policy, because they cannot be washed away with the rain and are hard to clean up, even the Town of Normal has found posters on light polls, buildings and stop signs. Still the campus is covered each morning with slogans and flyers from bars nearby in Bloomington.
"We talked with the downtown bars a year ago about it and the taped signs have continued," Vice President of Student Affairs Helen Mamarchev said. "We have recently talked to the bars again and they gave their word the advertising would stop, but they are still around."
"We could spend a lot more time making the campus look nice if we did not spend so much time everyday cleaning up the advertisements from the bars," Director of Ground Operations Mike O'Grady said.
Unpaid media space - which actually isn't media space - is costing the school a lot of money. The Town of Normal has found posters on light polls, buildings and stop signs. Yes stop signs.