Escape From Script In Use Blocking?

[Sannyasin Brahmanathaswami]

if you manage to do something odd in an on preopencard script such that

a) no error msg appears
b) attempts to change the script are blocked with:

  "cannot change script while is it executing

How to you get out?  I have a good idea what is wrong but cannot change the script or enter a break point to step through the code to see issues?

cmd dot doesn’t halt anything either.

BR