Chosen Solution
I was replacing the battery in an iphone se and the pull tabs broke so I attempted to pry the battery out, at one point the battery started smoking and a small fire happened for probably 3 seconds. The battery was almost fully dead at the time of removal. Is it safe to continue to pry it out and can it catch fire again?
In my experience if they catch on fire it is only once. Take it out side and finish removing to be safe.