Ode to work

I've been busy scanning my computer for spyware (Boring, Boring, Boring!) so here's something I prepared earlier:

If you work and do your best,
You'll get the sack like all the rest.
But if you laze and b****r about,
You'll live to see the job right out.
The work is hard, the pay is small,
So take your time and s*d 'em all.
'Cause when you're dead you'll be forgot,
So don't try to do the blooming lot.
Or on your tombstone neatly lacquered,
These three words, "JUST BLEEDING KNACKERED!"