How do you use nonplussed in a sentence?

Nonplussed is an adjective meaning bewildered, confused, or perplexed. It can also be the past tense of the verb nonplus, which means to bewilder or to cause to be at a loss for Words. Example sentences: His statement that he was a chihuahua in human form left her nonplussed. The mother was nonplussed by the child's statement that he went to Africa during kindergarten.