It takes 13 seconds to get from Mid to Bot...
...with only 
at 381 MS. That's not including runes/masteries/using dash or MS abilities. So don't yell at your mid laner for not giving "enough warning" 40+ seconds later. If she calls mia at 11:56 and you're screaming at her at 12:42 immediately after you just died from a 4 man gank bot saying "You didn't give me enough warning." Think again. Go try it on Practice Tool if you don't believe me. Go from point A (the mid river bush where your opponent just left your field of vision) to point B (where the bot laner is at). 13 seconds. It varies from champ to champ. The point is it doesn't take 40+ seconds.
