Sight, smell, touch, taste, hearing. Them there's your five senses. Since kindergarten, you've probably been told that anyone who thinks she has a sixth sense is either a television psychic or M. Night Shyamalan. This original classification is widely attributed to Aristotle, so if you try to argue that there are more than five, you're basically arguing with the guy who invented being smart.
And wannabe intellectuals have rocked the comb forward/beard combo ever since.
Scientists still aren't quite sure of exactly how many senses you have, or what even constitutes a sense, but you'd be hard-pressed to find one who believes you have five. Depending on how they count them, they usually wind up with something like 14 to 20. The five you learned about in school were just the five most evident senses, aka the boring ones you could have figured out for your own damn self. The rest are far more interesting.
Pictured: #19, smision.