Duh!

Boss : Adam, I need your contact number.
Adam : Ok .My cell number is ********** .

Boss : You might have to come to the office this week end .
Adam : No problem ,boss

Boss : Give me your secondary contact number .I know what you did last time when I had asked you to work on a weekend.This time your idea wont work.

Adam : Last time ,I had lost my cell phone .I found it only on Monday morning .Actually I had left the phone at my office desk only.

Boss : I believe you,totally!But still , what if your mobile disappears on Friday night ?
Adam : Boss , you have to trust me. I am totally committed to my work.

Boss : Don't waste my time.
Adam : Ok.**********.You can use that number. Its my room mate's.

Boss : What's his name?
Adam : R-E-N-O-O

Boss :Aha, live in relationship ?Now i understood why you had diarrhoea last Friday!
Adam :WTF?

Boss :Renoo !!
Adam :Its a male!!!!!!!