A Minnesota mom was left "speechless" after this random act of kindness for her family.

Angie Evenson has three daughters, who love to wait by the window and wave to the garbage men every week. They've been doing it for the last two years.

The men, Brandon Olsen and Taylor Fritz, even stopped to give the little girls candy for Halloween. When they did, Angie passed a note along...saying that her middle daughter Rose had been diagnosed with cancer, and if they weren't there to wave hi, that would be why.

So, Olsen and Fritz brought back a letter for them. The letter said:

The definition of random act of kindness. Doesn't take much to make somebody's day. :)