Just be thankful your still getting a paycheck for your boredom.
I don't want to sleep (but I must or my schedule will get all screwy)
Just be thankful you have that option.
None of my friends are on yim yet
Just be thankful you have friends.
My eyes are dry.
Just be thankful you even have eyes! In my day, we had to go eyeless! 
I wanna go home early.
Just be thankful you are not E.T.
I can't decide what I want for lunch.
Just be thankful you can make up your own mind at all.
My tummy hurts from all the iced coffee I drank this morning.
oh pooh!
Just be thankful it'll pass
I have to leave my house for a few minutes
Just be thankful you'll have a house to return to 
I'm stuck in my office until 4:30 pm EST
Just be thanksfull that soon it will be the weekend and you will be stuck at home
My cat wont come home
Just be thankful it could possibly change it's mind and come home.
It's all raining and gloomy outside.
Just be thankful it's not all raining and gloomy inside.
This work thing can be awfully distracting.
just be glad someone isn't sending you something NSFW while your boss is going by
I can never remember that Angry lives in the sma e basic area as I
Just be thankful its not the same household as you.
I still have to wait 4 hours before I can go home.
Just be thankful that you have the CoH forums to goof off in.
It's not the 6 or so hours more I need to be at the office, it's the hour of traffic OTWH that bites the big dog.
Just be thankful you have a car to drive home.
My comp is getting slower.
Just be thankful you still have a computer.
I hate people who drive 30 miles an hour in the passing lane!
Just be thankful they are awake. Sort of.
I hate having to repeat myself, in general.
Just be thankful you don't have to say that again.
People in my office building are dumber than dumb.
Just be thankful you're the smart one
I have to go to the workplace tonight when everyone else will be on the game 
Just be thankful that you know how to fix what they dont
everyone seems to think Naruto is good
Just be thankful that you are not everyone.
I sometimes hit a semicolon instead of a comma. It;s really annoying.
just be thankful you punctuate.
hey as if you made me say that
Just be thankful you can speak.
A friend of mine is having computer problems and I can't help 
Just be thankful that they're not having sexual problems (we hope).
I hate when I try to say soemthing in team chat and it goes WWWWWWWWWWWWWWWWWWWWWWWWWWWWW...!
Just be thankful you didn't lose my number
I'm bored at my desk at work.