It would be advisable not to begin your day by saying, "Today I will call everyone at my office 'Lenny'." It is more intelligent to just get out of bed, take a quick shower, get some coffee, then go to work.

"Hey Lenny!" you shouldn't say to Rhonda, the receptionist.

However, if you do, you'll hear her ask the other receptionist, the one whose name you don't know but have had a fleeting crush on since March, "Why did he just call me that?"

"He's really weird."

Then, when you get back to your desk and you're sitting, starring at the monitor in front of you, it's probably best not to send the CEO of the company an e-mail that reads:

To: Robert Johansen
From: Steve Delahoyde
RE: Dinner Tonite!

Lenny,
Are we still on for supper tonight at your place? Hope your wife is going to make that squash again like last time. Man that's good.

See you soon,
Steve

Because it will be replied with:

To: Steve Delahoyde
From: Robert Johansen
RE: Dinner Tonite

Steve,
I think you might have sent this to the wrong person.

Upon which, it is not advisable to send this:

To: Robert Johansen
From: Steve Delahoyde
RE: Dinner Tonite

Lenny,
Nope, I've got the right chump.

- Steve

Which will result in your supervisor coming over just minutes later.

"What are you doing?" she'd ask.

"What?" you shouldn't even think about saying while feigning ignorance.

"Sending Robert really strange e-mails?"

Then you'd really blow it if you said, "Listen Lenny, if Lenny doesn't want to admit that we have something going here, than both you and Lenny are just lying to yourselves."