Would this usage of exclamation mark be correct?
I want to — honest! — give you a slap!
Yes, I know, it's a quite bad example, but I wonder if this usage of an exclamation inside a sentence is correct. If not, is there any situation where an exclamation mark would be acceptable in a sentence?
I'll give you another example:
He said he ate a thousand (!) fishes.
Is this correct?