Just tried it sitting at my workbench at work.

Multitool in pocket, another knife in easy reach found it with eyes shut.
Flashlight in pocket, two others nearby, light switch for battery backed room light to hand.
No bandana, but I did have a dust mask and a first aid kit within easy reach.
Whistle, in bug out kit, not about my person.

Is that 3 out of 4 ? despite lack of bandana, I did have other items to serve the same purpose.