Other way could be:
Vandalism of city buses is becoming a rather commom fact in manifestations nowadays, in fact it have been the works of irresponsible individuals that lack creativity and maturity, most of the times by people that act blindly don´t even caring about the real reason of the manifestation itself.
For one thing. By doing that, they decrease the number of buses in our cities, as if there weren´t already a lack of them. So, resulting in more cramming into the remaining buses.
Sorry for the verbose answer. he he.