MLB player John Axford throws right.
MLB player John Axford bats right.
MLB player John Danks throws left.
MLB player John Lamb throws left.
MLB player John Baker throws right.
MLB player John Buck throws right.
MLB player John Jaso throws right.
MLB player John Lackey throws right.
MLB player John McDonald throws right.
MLB player John Mayberry Jr. throws right.
MLB player John Ryan Murphy throws right.
Left.
This riddle refers to a boomerang. When you throw a boomerang to the right, it travels in an arc and returns to your left side, allowing you to see it again. However, if you throw it to the left, it continues on its path and does not return, so you won't see it again.