Dearest members of the brainless society chattering morons brilliant examples of what evolution was meant to avoid chattering girls in my way:
See that in my hands? Yes. It's a monitor. Yes. It's heavy. Yes, I'm meant to be carrying it to that desk you're standing in front of. Stop gaping at me and get. out. of. my. way.
Sincerely,
your friendly Deputy IT Manager who's about to drop a monitor on her damn foot so would you please get out of the way?

The phrase you are looking for is "Watch yourselves, I'm under load." (office speak for "Get out of my way or get whacked with a heavy thing - your choice")