Duane Barry and Mulder in “Duane Barry”

They're, uh... they're talking to Duane Barry. But they don't speak. He can hear what they're saying. They can... read his mind.

Mulder

That's right. Abductees call it mindscan. It's a kind of telepathy.

I'm telling 'em I don't want to go... but they never listen. They know what I'm saying. But they just... go right on about their business.

Tell him what their business is. Tell him.

Mulder

They take you aboard the ship to perform the tests.

They... drilled my teeth. They drill holes in my damn teeth!