(Before he inserts the swab in the person's mouth, he pauses, looks confusedly down at the swab lying on the table, and doubtfully looks at the swab in his hand. He quickly puts the swab in his hand down on the table and picks up the one resting on the table and eyes it closely. Then holds it out in front of him cheerfully)
"Uhh......okay! Good, I think we can proceed..."
Shades of idiocracy
https://www.youtube.com/watch?v=hmUVo0xVAqE