Back in March 2014, the Canadian city of Vancouver banned the use of lever door handles on outside doors in new buildings. The change sparked outrage as door knobs can be quite difficult for elderly or disabled people to operate. However the change in Canada and some US states such as Colorado has come as a way to protect people from others that can’t operate door knobs: Bears.
Bears have been known to be able to open car and home doors with handles in order to scavenge food in Canada and northern USA. So the ban was put in place to stop bears from being able to access people’s homes. At Doorstuff we recommend the inhabitants of Isla Nublar to implement this policy as velociraptors are also known to be able to open doors with lever handles.