I heard that too; and in a show of confidence I bought a big tube of toothpaste!

Then there's counterfeit toothpaste... the list goes on...Be careful and consider your liability if your product were to be built with such contents, completely unbeknownst to you.

Like toothpaste squeezed from its tube, words  once spoken,  can not be easily put back in, and can leave a mess behind.

Toiletries (toothpaste, soap, hand soap, shampoo/conditioner). 

I had inherited tenants where the kids took toothpaste and wrote on the walls with words and numbers and let it dry.

Boric acid can be found in products such as mouthwash & toothpaste, but is deadly to roaches.

consistency of the thinset. essentially it should be like tooth paste. this allows it to plop down on the floor without spreading on its own you can put it where you want it without it creeping. read the bag it will tell you how to mix it.  

If you want the tiny nail holes to "disappear", fill them in with toothpaste and wipe clean around them. 

It is like sending someone to the grocery store, that knows nothing about toothpaste, and telling them to buy the toothpaste that offers the best balance of benefits and cost.

Its used in everything from toothpaste, to solar panels, to cell phones, to antibacterial products.