OK first off credit to T-Mal for the framework of my response to this.
basically I've been texting this HB9 I met last friday on a night out and things were going well until she flaked... we were set to the zoo for a date on friday but then on monday night I got the flake text:
H9: "blah blah ... In all seriousness I am working on Friday, rubbish I know".
I know she's not working Friday (through shameless FB stalking) and there is no invite to rearrange which is not a good sign. I managed to turn this around though.
Me: "Ah bummer... well we wouldn't want you getting fired for sciving off work now would we ; ). Though if I get caught stealing a penguin you best come bust me out of prison!"
This works because it shows you are a little disappointed whilst remaining fun and playful
Her: "haha I will come to rescue don't you worry! I best get a cute little penguin as payment though... I love penguins! We definitely will have to plan our zoo trip are you free saturday or sunday??"
Another point to note here is all this was done on a whatsapp message which means she can see when I've read the message. I read it then waited 6 hours or so before replying... If ever a girl sends a flaky or shitty text a mini Freeze Out works soo well because they start wondering if you've lost interest and the "why hasn't he texted?" question builds. It works even better when they can see you've read the message and haven't replied.