Call Waiting - S3-E3
Continuity mistake: When Bellick is talking to Pistachio, Pistachio pulls out the razor and starts to close it. Camera changes and she closes the razor again.

Call Waiting - S3-E3
Continuity mistake: T-Bag walks in on Lechero who has his hands up to his head. Camera changes and his hands are down. (00:36:20)

Call Waiting - S3-E3
Continuity mistake: Whistler goes to talk to Mahone in his cell. Mahone alternately has his hand by his mouth or lowered. (00:28:00)

Call Waiting - S3-E3
Continuity mistake: When showing Whistler the picture of Sara, the way it's held changes between shots. (00:16:30)
Answer: Don Self actually worked with Whistler before he died. And Whistler with the bird book actually knew where Scylla was.