The book of my theorys

Aliens probarbly are smarter than the average human.

☋The reason why I came up with this:

☋in the books, aliens always have UFO'S. That's probarbly very hard to make.

☋My hypothesis:

☋Aliens probarbly control kites and stuff so if you see it moving or being heavier than usual, it's probarbly because aliens put security cameras on it and control it by using a kite-controller.

☋They might even have invisible UFO's!

☋I read somewhere that cockroaches can't die. The cockroaches might just be some of the aliens' puppets to spy on us.

☋Why I still believe this:

☋Sometimes my kite feels strangely heavy and falls down when it's not supposed to.

☋Ways to avoid this:

☋Check the sky regularly, in case the aliens are caught of guard.
☋be more cautious around cockroaches
☋be more cautious about kites.