Some people hate bicyclists so much they actually want to hurt us. We’ve heard that someone spread hundreds of tacks in the bike lanes on Brookline Street in Cambridge last week, in the short stretch between the BU Bridge rotary and Henry Street/Waverly Street. A Good Samaritan bicyclist picked up as many tacks as he could find and reported the incident to the police. (Unfortunately for him, he discovered the tacks by getting a flat.) Obviously, this is an insanely dangerous and illegal thing for some bike-hater to do. Everyone keep your eyes open for this sort of thing, and make sure to report any incidents to the local police and to MassBike. If anyone saw anything related to this specific incident, contact Sgt. Kathy Murphy at the Cambridge Police.