Everyone welcome me back right now. Or I’ll cry.
Oh, were you gone?
(just kidding, Welcome back, Kotter!)
ah…sure…why not???
Welcome back!!!
I suppose you have a really good excuse for your recent absenteeism? 
djm
And you are…?
Just kidding!
Welcome back, Congrats!
You see, you have to keep charge in your very own rubber room, and you don’t have time to do ANYTHING else.
Welcome back.
Congratulations on your return to civilization! 
Congratulations, Congratulations! You made it back!! 
Did you miss us?
Of course he did.
…his aim is terrible.
yeah, we’re pretty “missable” aren’t we? 
Is that a “dis”?
djm
What a dismissable comment.
Welcome back, Congrats!
Welcome back, you.
Sam Houston welcomes you back.
I’m gonna make Congratulations cry.
…okay fine. Welcome back.
Good to see you back-
does this mean we get to have a party?
How are you (other than being on the verge of tears)?
Did you gather lots of material for your novel!!
Welcome back, having you here again is a novel experience.