早老性痴呆

早 = 十 + 日 : Mnemonic symbol: your very own annoying alarm clock going off in the morning.

The sun (日) is rising above Zorro's (z) alarm clock (早) in the aorta's living room (ao3), but Zorro just smashs it with a big cross (十).

老 = ⺹ + 匕 : Lancelot (l) is showing his respect to grandpa (老) in the aorta's living room (ao3). He's bowing deep and offering a crown (⺹), but grandpa refuses by hitting Lancelot on the head with a ladle (匕).

性 = 忄 + 生 : Marie Curie had a strong character since she was little. Even in her cradle in the engine's bathroom she was only playing with a flail.

呆 = 口 + 木 : The fool (呆) wants to make fun of Don Quixote (d) in front of the airplane (ai1). To fool him, he set up a Christmas tree (木) to look like a huge animal by putting a mandarin (口) on top which looks like the head of the animal. Don Quixote thinks he met his arch enemy and starts to charge the construction, much to the fool's delight.