Where is my mind?

Walking from the RENFE station at the Autónoma, on one of the benches I saw a canister with some red liquid, resembling kalimotxo. I thought: 'Oh my, it must have been some mini botellón'. Close to the canister, there was some yellow plastic string, but I didn't pay enough attention what kind it was. A little bit further down my way, voilà, there was another still life, absolutely identical, a canister with red liquid and a yellow string. I thought: 'C'mon, this is completely ridiculous, what was happening here?' and then, all of a sudden, I saw a guy with a string trimmer.