Hi, I have a question in regards to a photography contract. It states that in case of an emergency, illness, casualty, etc they will not be able to provide the service, they reserve the sole right to appoint a substitute. Is this something any of you have come across? I am not completely familiar with the photography industry. In my mind I thought if that should happen we should hire a new photographer. We want to make sure we like their work and they have solid business practices. Thoughts? TIA