Symbiosis

We were watching this.

In the video, you see an oxpicker eating the ticks off a giraffe at warp speed.

Me: Okay, what type of symbiosis is being shown here? I see two relationships.
Class: Parasitism! Mutualism! Communism!
Me: COMMUNISM?
Daniel:YEAH!
Ivone: That's when a dictator takes over, moron.
Me: Not necessarily, it's just when..... Okay, we're getting off task. Daniel, what is the correct word you meant to say?
Daniel: Commensalism.
Me: Okay, good, and did we see that? Which did we see?
Kevin: Miss J, I want to see that bird eating corn. Nar-nar-nar-nar-nar!
Me: (dies) (regains composure) Can anyone please tell me what they saw?
Madeline: We saw parasitism because the tick was feeding off the giraffe and hurting it, and mutualism because the bird was eating the ticks off the giraffe so both were helped.
Me: Madeline, you just saved my sanity. Thank you.