Turn signals are an important part of safe navigating on busy roadways to indicate your intention of turning left, right or shifting lanes. Bicycle riders, just like car drivers, must use signals to indicate their intentions. And, sometimes whether driver or cyclist, we all forget to switch the signal off as this hilarious, cartoon, giant Father's Day oversized card by Dave Coverly presents. It's easy to overlook the small blinking light on the dashboard, but how do you forget to lower your arm? Must be a big brain fart! Wish your super dad well and tell him to enjoy the ride. It's his epic day.