Some dive professionals who frequent waters populated by octopus refer to them as the “cats of the sea” (not to be confused with SCUBA cat). This description is based on their frequent curiosity but also short attention spans.
In the video below, a diver comes up on an octopus who takes an interested in his camera. The camera runs throughout the ordeal while the diver chases the octopus trying to recover his SCUBA gear. Eventually, the SCUBA diver in the video is able to entice the octopus away from the camera by offering his spear gun. Luckily, the octopus didn’t take the time to figure out the spear gun and let it go as well, leaving the SCUBA diver with some incredible video. Check it out:
Should you encounter a curious octopus while on a dive, hold your hand over your regulator and mask so the octopus doesn’t accidentally pull them off, then patiently wait for it to lose interest and swim away.