Display Dialog button misbehavior

Question

-- This is not an earth-shattering matter, but I've wondered if others have encountered some inconsistent button behavior with 'Display dialog'
-- For example, consider the following, which wasn't misbehaving when I posted this
display dialog "Go" buttons {"OK", "Quit"} default button 1 cancel button 2
--What happens sometimes is that button 1, although properly highlighted in the display, won't respond to the return button (must be clicked on directly). This behavior is usually consistent for a given display, while other displays in the same script may behave properly.
-- Other Info:
-- I've tried using the button name rather than number (no difference).
-- I can't be certain, but I think displays with default answers have never misbehaved for me.
-- This is something I've observed on and off for months, but have never really pursued it.
-- I've found nothing about the affected displays that seems unusual or atypical.
-- I'm not expecting a work-around (although that would be great), just wondering if others see this.
--TIA

Answer 1

The simplest way to do this is to create a stay-open applescript application with the following code:
on quit
          display dialog "Please Backup Your Data
There is a risk of data loss if the machine experiences a hardware failure or an accident occurs" buttons {"Log Out", "Cancel"} default button "Cancel" with icon stop
          if button returned of result is "Log Out" then
                    continue quit
          end if
end quit
and then run it at startup.  when the user tries to logout, the on quit handler will run and the program won't quit unless they choose logout; otherwise the program won't quit and the logout will be canceled.