Twitter and bike riding
It's probably not a good idea to initiate a Twitter exchange in the middle of a bike ride.
If you are fortunate enough to have people write back, your phone will be pinging away as you ride. Of course, you can pull over and pay attention to your phone for a moment and then resume your ride. But sooner or later, you are going to be tempted to read a tweet or, God help us, send a tweet while pedaling.
That way lies madness.
