We recently purchased the Bugaboo Frog Stroller for our 6 month old daughter. Given the cost of these strollers, I am a bit uncomfortable leaving it unattended outside of rides and restaurants on our upcoming trip. Has anyone else had this problem? Any tips? I really don't want to use another stroller since she is used to this one and it is the most comfortable and manuverable. Also, she is not big enough for the Disney rentals which I know are spectacular for bigger children. Thanks.