I believe this is their first duel mischivous act.  This is what I heard: scoooooooot. climb, climb, climb.  "jojo wait, watch lena."  Silence, then kerplunk kerplunk of the animal crackers.  Which is when I headed toward the scene, Joseph started to cry, and I came around the corner to Kaylena handing Joseph a cracker and saying, "it okay jojo, here, cracker." then turning to me...."jojo cry, lena drop cracker-loud, lena crawl up ooh crackers eat yum yum then lena cracker fall, too loud!! jojo cry, lena cracker 'here jojo', mama come, 'heeeeey', jojo happy!"  It's so cute how her sentence structure and mind work.  Most of the time she relates what happened starting at the current state, back to some chosen point, then chronologically back to the current moment.  It's just as cute as Joseph's huge grin.