In between Payson and Spanish Fork on I-15 there is some construction. As you drive through it the road shifts and you go over the "Rumble strips" a few times. Every time we go over them and they make the loud sound Karlie Giggles uncontrollably. The bad thing about the video is that you can only see the picture shake slightly instead of hearing the noise. She is also a little more shy because she knows she is being videoed. But it is still cute.