Oh the separate texts for everything winds me up too, soooo much! Particularly as I use the shittest 'graft' phone available and I have to manually delete texts to save space. I have a love/hate relationship with my cheap nokia but this behaviour makes my ears steam! BASTARDS!!!
The "You workin?" - which is common in Liverpool - always gets the same reply from me...
"Did you mean hello?!"
9 times out of 10 I get a very quick apology and a proper text but it used to wind me up no end! Maybe I'm finally maturing