Lost my grip. Watched it hurtle in slow motion towards the toilet—which it missed by a fraction because it hit my leg on the way—and as I yelled, “Noooooooooooooooooooooooooooooooo”, it landed toothpaste-loaded bristles down on the floor at the toilet base.
Exasperated for, like, a split second. Threw it away and reached into the package for the other one. Brushed my teeth.
Noticed the right thigh of my jeans was covered in a huge splatter of white toothpaste. Changed into another clean pair of jeans.