The Tubes of Toothpaste

A math problem: if there are 40 students in A2 in Gaurishankar house, how many of them have their own tubes of toothpaste? If your answer is anywhere above 15, you are way off. If you guessed it around 10, you are a pretty good guesser. If your guess was between 5 and 7, you are probably correct.
 
Between 5 and 7 tubes of toothpaste are supplying the necessary toothpaste for the 40 students of Gaurishankar house daily. Technically, every student should have his own tube, but if the world were run by the ‘technicalities’ then everyone would have their own towels too and I would not need to keep a separate towel just to lend it to people who ask. The fact is, the world is a cruel, cruel place, and most of us have realized that sharing is not only caring, but it’s everything. Corollary: everything that can be shared should be, including sports socks, toothpaste, towel, shirts and pants, bathing soap, and sometimes, even swimming trunks.
 
Female readers might have the expression Ewww floating in their minds right now. Our girl classmates seem to find the idea that we care for each other by sharing things very—appalling. To make things clear, we do NOT share everything. Only over a dead person’s pyre will we share the travel fare while travelling (the trick is, you find a bloke who you are certain has money, and make him pay everyone’s fare) or things like that.
 
But I digress. The toothpaste owners are kind souls indeed, for without their contribution, a lot of people would have rotten teeth, or god forbid, they would have to buy their own toothpaste. The idea sounds horrible in writing; it would probably be intolerable in practice. People in GC-14 are especially considerate because two of the three lockers there are usually open to offer free toothpaste to those looking for it. Su, is even more considerate—his locker has a nice offering of oils, shampoo, toothpaste, bathing soap, and even comb. Of course, while borrowing toothpaste, one must Always follow the golden rule: Never Get Caught, or Else You Have To Vehemently Deny That You Do Not Have Toothpaste, Produce a Tube as A Proof, and Lend Daily to At Least 6 People(on average). Alternately, if the owner’s around, you can just ask him for it. He wont say no.