Lyft pranked itself with an April Fools' wearable thumb gadget

Starting today, you can hail a car on Lyft via a wearable gadget for your thumb. Only you can’t really do that because this is just a dumb prank. But wow, what a prank it is.Lyft loves its pranks. Every year, the ride-hail company does something outlandish for April Fools’ Day. Last year, Lyft added something called "prank mode" to its app, allowing customers in NYC, LA, and San Francisco to embark on elaborate pranks involving fake radio stations, actors, and of course, Lyft Line. O