there will be a video to accompany this at some point, but this “bad” behavior is surprisingly stuart.  he seems to think every object placed anywhere (recently placed or not) is his to bat repeatedly until it falls.  typical sequence of events (plus my inserted commentary of what i think is going through his mind:

[swat]
stuart: did that move, or did i move it? i’m not sure…
[waits, watches]
[swat]
stuart: wait–did it move, or was that me again?
[waits, watches]
[swat, swat swat swat]
stuart: did it move?
[waits]
[swat swat swat, till the object falls]

and the sequence in photos: