On my way into our conservatory.....well, guess what? 
Correct. The door was closed and not open!

Smack! Ouch! Again! Grrrrr! "&$^&£&*$%!"

How dare that be? Who would have thought it?

Anyone any brilliant ideas as to how best to tell that a totally invisible glass patio door is 'there' rather than 'not there'?

Correct. The door was closed and not open!
Smack! Ouch! Again! Grrrrr! "&$^&£&*$%!"
How dare that be? Who would have thought it?
Anyone any brilliant ideas as to how best to tell that a totally invisible glass patio door is 'there' rather than 'not there'?