The next time you go out drinking chances are that you will be placing your chilled beer on top of a bleeding coaster. The Mumbai Traffic Police placed at tables and bar counters in Mumbai’s prominent bars. When a customer places their moist glass of alcohol on it, the red ink starts spreading and the face starts to bleed. The coasters were printed using a special invisible red ink, which spreads only when moistened. Emotional blackmail always works, hence these coasters will be a warning against drunk driving stunts.

