Integrity Document should not add as “Included document” in same Parent Document/Same Document

Integrity Document should not add as “Included document” in same Parent Document/Same Document. How to restrict this? Can anybody help with trigger option.

Currently Its possible to add Doc 123 to be add as an Included document in same Doc 123. It will not open if we try but while loading its taking much time than expected. Its keep on looping and looping.

Can we restrict such things with trigger scripts ? Suggestions are welcome!!

Regards,
Chittaranjan Pise