Actor Justin Long, who underwent hernia surgery last week, cooperated with Andy Cohen's antics on his show.

Soon after the surgery, Long appeared on Cohen's late night show `Watch What Happens Live` Monday, and just before the programme started, the excited host jumped into the actor's arms to greet him, straddling him with his legs, reports contactmusic.com.

However, Cohen had no idea that Long was recovering from the procedure, and the latter recalled the harrowing moment on live TV and said: "It's a move I'm very familiar with, because I am a monkey, like Andy is, and I do that to people all the time.`

"But what Andy didn't know is that a couple (of) seconds before he did that, I was going through my head, 'I wonder if I should tell Andy that I had hernia surgery four days ago', which I did. I had laparoscopic hernia surgery,` added Long.

Cohen later posted a photo on his Instagram account of himself in his guest's arms, and Long later replied to him on Twitter and wrote: "What the audience can't see is the five day-old surgically implanted hernia patch, now struggling, to hold my intestines in!"