I was thinking well I wonder as well. Thinking though made me realize just how much funnier the smiths were vs them being typecast a bit as sad sacks. So much of that sad felling for lack of a better word is hurried under humor (in some ways making them all a bit sadder from a certain perspective). It was hard for me to find just an out and out sad one from memory. Asleep also comes to mind
I have a few that I believe add emotional depth to their cannon.
Suffer Little Children
This Night Has Opened My Eyes
Half A Person
Reel Around The Fountain
Back To The Old House
Please Please Please Let Me Get
That Joke Isn't Funny Anymore
Well I Wonder
I Know It's Over
The Boy With The Thorn In His Side
Last Night I Dreamt That Somebody
All songs that seem to lack any real humour on Morrisseys part (other than, say Half A Person). Songs that state their case simply and effectively and brutally . I think Morrissey could have dispensed with the irony a lot more and would have got away with it. These, mainly 'minor' songs are essential to me as part of the whole picture.