Its a meme.

http://knowyourmeme.com/memes/limes-guy-why-cant-i-hold-all-these-limes

"Why Can’t I Hold All These Limes? is an image macro series featuring a man attempting to carry several limes in his hands while they appear to be falling from his grasp. Derivatives often feature other characters failing to secure a variety of objects."



I hope someone here gets what the image above is referencing. Hint: Portals

Back on topic:

You can never have enough Quadras, or so I am told.