If TSLA drops to 300, you can buy shares and also sell 285 put at the same time, it is extremely unlikely TSLA can drop below 275. Anything below 275 will be bought up by institutions in a big way.
Of course, you only want to do this if you are ok if those 285put are assigned.
I did this in a big way when I accumulated TSLA all the way down to 240 (ie, buying shares and selling puts at same time)