Keyboard commando here.
A few have fought off cougar by poking or hitting them with an object.
It would appear that if they don't kill their prey with a quick bite to the neck,
they don't have a lot of interest in getting hurt. Pepper spray should work for that.
Often it is a fellow outdoors person that dissuades the lion with some sort of object.
Around here where their are lions and bears and wolves, oh my, people carry
pepper spray, sheath knives or firearms.
I know of 4 people that killed lions that charged them while they were stand hunting
for deer or turkey while using a call.