When he's on break from delivering you a bag full of branches, this frog likes to spend his time relaxing by the river and staring at fireflies. Though his face is unwavering, he always exudes confidence - and a little bit of smugness, too.
When I was starting out in Dota 2 a year and a half ago, there was somebody who seemed to follow me around and make my game miserable. They would buy 30 of these frogs, send them all down mid lane, and feed 3000 gold to the enemy carry. Then do it every 3 minutes.
After I got good at the game I realised that this almost never happens. It still made me quit for a few months, which is why I harbor a grudge against this small frog.
Based off the courier from DOTA 2. (http://dota2.gamepedia.com/File:Skip_the_Delivery_Frog.png)