You can relate, can't you?

Things That Are Difficult To Say When You're Drunk

Cinnamon
Indubitably
Innovative
Preliminary
Proliferation

Things That Are VERY Difficult To Say When You're Drunk

British Constitution
Loquacious Transubstantiate
Passive-aggressive disorder
Specificity

Things That Are Downright IMPOSSIBLE To Say When You're Drunk

Thanks, but I don't want to have sex.
Nope, no more alcohol for me.
Sorry, but you're not really my type.
Good evening officer, isn't it lovely out tonight?
Oh, I just couldn't. No one wants to hear me sing.
You're right, I can't jump over that table!

This came from Stargazer's Realm (really not worth visiting) via Clipmarks (worth a look).