alt Hacker NewsThere are countries that for whatever reason do not allow lighters on airplanes.
One time my bag was searched furiously because they saw a lighter on the machine, but had trouble locating it. Took two people about 15 minutes. Finally found it. It was very tiny.
Can depend on the lighter. A $1 plain lighter is fine in some countries while a $3 pressurized “jet” lighter is often prohibited.