and if you want to be really pedantic, it should of been "Sorry, I had to"
If we're being pedantic, it's "should have been", not "should of been".
Sorry, my brain wants to explode when I see that, it's like when someone wants to "aks a question"! (how do they do that?)
No offense to anyone! Honestly! I'm really not a grammar nazi!
cheers, Ian