焊

焊 = 火 + 旱 : The marmot (旱) is considering to move in with Hamlet (h) and visits him in the anthill's bathroom (an4). To welcome the marmot, Hamlet is welding (焊) a steel sculpture displaying the words "to pee or not to pee!". The sparks caused by the welding set the whole anthill on fire (火) though and so the marmot runs back to its burrow.

旱 = 日 + 干 : Mnemonic symbol: a marmot, 旱獭 (han4 ta3).

Hamlet (h) used the drought (旱) to dry fruits (干) under the sun (日) in the anthill's bathroom (an4), but the marmot (旱) secretly stole and ate all the dried fruits.

旱 = 日 + 干 : This character provides a mnemonic on its own: the sun (日) dries out (干) the land, leading to a drought (旱).

火 = 人 + 丶 : Helga Horse (hu) and Neanderthal Man (人) are starting a fire (火) in the observatory's living room (o3) with two large petals (丶).