Octopus tries to latch on filmers feet scare away

Yesterday I took a dip in the Mediterranean Sea (in the north of Spain). When I came out of the water I noticed an octopus close to shore, looking at me. I came towards the octopus and it came closer to me, then it touched my foot with its tentacle and tried to latch onto me! I was shocked and quickly backed away. The octopus squirted me, then stayed close and continued to observe me at the edge of the shoreline.