believe it or not, if you find out how to gamble in the casinos of Las Venturas, you will get a luck meter. If you loose more games then win, your luck goes down. Which increases the chances of you getting hit by a car as well as object falling from the sky on you.
Go to the top of mount chilliad and just ride a bicycle in circles for a few seconds to minutes and eventually IT WILL happen. Ive been in downtown Los Santos and have had planes randomly crash into buildings and create some pretty large explosions.
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