Hi, Alex,
In Porto Alegre last week you showed Yoshiki and me a repeatable bug that keeps showing up in a kind of demo of etoys that you like to give which happens to use a ticking script that deploys the "look like" tile.
The bug occurs when a copy or sibling of an object which has a currently-ticking script which is using the "look like" command is "torn off" from the object by dragging from the object's green "duplication" handle, with (for sibling) or without (for simple 'duplicate') the shift-key down.
I've created a JIRA tracker ticket for this:
http://jira.immuexa.com/browse/SQ-288
... and have also provided a possible bug-fix:
http://jira.immuexa.com/secure/attachment/13662/lookLikeBug-sw.1.cs.gz
which I also attach herewith.
If you get a chance (I know you're on vacation :-)) please file this in to an up-to-date Squeak-etoys dev image and see whether this fixes the problem you've seen and whether it introduces any new issues.
Thanks,
-- Scott
etoys-dev@lists.squeakfoundation.org