Max dumps out the wastebasket and turns it over to sit on it. As he does, he places it over the jar of paint. A few moments later, without getting up or moving the wastebasket, he finds the jar on the floor, no longer under the basket.
Under the lights in the various offices, especially in Felix's photo lab, the artificial hair used to age Max & 99 appears distinctly blonde, particularly in contrast to the Chief's naturally-greying hair.
After 99 has aged, when she points at Carruthers' photo, her hand still looks "young."