If you are out in nature, you may get pollen on you, some of it may be MJ male pollen sacks exploded...
Doubtful...
Normal bee pollen, bees flying from plant to plant... if a bee has landed on a male MJ plant two miles away, and then lands on your MJ, you could get a seed...
A bee landing on an orange tree, and then landing on your MJ plant, can not pollinate it, unless said bee, has stopped along the way at a male MJ plant...
Wind, yes can bring in Pollen... BUT it has to be MJ Pollen for it to pollinate your buds...
No buds, no seeds...no MJ pollen, no seeds…
BTW…. A pollinated calyxes take between 7 days and 3-4 weeks to make a seed…
One male sack exploding in your grow room can cause 100 or more seeds, depending how many buds you have at that time…
Good Luck …..