Unfortunately, Callie took too long to strip the guard - his friend must have wondered what was keeping him so long, since they had a game going, and the door opened, revealing Callie and Karuna right when Callie was about to gag the man. Fortunately he was, even though much quicker than Karuna, a second slower than Callie, who acted like greased lighting, but his mouth was opening to sound the alarm.