On Monday, June 1, 2020 at 4:56:53 PM UTC-7, John DeRosa OHM Ω http://aviation.derosaweb.net wrote:
Two comments about cell phones;

1) Put it in a zippered pocket so if you have to bail out it might go missing when you need it most. Then what use would it be?

2) Put it in "airplane" mode or you might find that the battery is low or dead when you need it most. Then what use would it be?

Better yet, turn it off.