"See when you look at what you said there - it's negative."
"No it's not, I'm a happy bunny looking forward to the weekend."
"If you'd said 'I'm not going to be in Boots this weekend' that would be neutral but what you're really saying in effect is - I'm not in Boots this weekend, normally I am and I'm sick of it, life's passing me by etc. so it's actually you not me that's being all negative."
"Bollocks."