Just the One

Too many facts I can't absorb,
They make my grey cells ache,
So stop with all the 'did you knows?'
You're making a mistake!

There's itching in my brain pan,
And my memory sieve's full up,
Another though will cause such damage
I can't bear to look!

So, quickly go and get some wine,
You'll have me in your debt,
Quick! I feel an idea forming,
It's a very real threat!

Calamity! You were too late,
I told you to be quick!
Best fetch some whiskey, (single malt mind)
That should do the trick!