How do I swipe something with the new kleptomaniac trait?

I was wondering about this too. I recently started a sim that has the klepto trait and I'd click on several little small objects in people's homes but the option to swipe didn't come up for most of them but she was able to swipe a lamp and she tried to swipe a book but got caught. I can't remember what level mischief she's got (whatever level allows you to have the voodoo doll) but it seemed lamps were swipeable but decorative clutter items weren't? IIRC, in S3 you could swipe almost anything depending upon what type of lot you were on so I'm a little confused as to the "rules" for klepto in S4.