憾

hàn = h + an4

regret (sense of loss or dissatisfaction)

憾 = 忄 + 感 : Hamlet (h) attached a few feelers (感) to his flail (忄), but he soon regrets (憾) his decision as he realizes in the anthill's bathroom (an4) that from now on he will feel anything he beats with the flail.

憾 character breakdown

憾
- 忄
- 感
  - 咸
    - 口
    - 戊
      - 丿
      - 厂
      - 戈
        
        丿
        
        弋
    - 戌
      - 一
      - 戊
        
        丿
        
        厂
        
        戈
        
        丿
        
        弋
    - 𠮛
      - 一
      - 口
  - 心
    - 丶
    - 乚

忄

xi̅n = xi + (e)n1

Kangxi radical 61 (心) as a vertical side element

Looks a bit like a flail.

感

gǎn = g + an3

to feel / to move / to touch / to affect / feeling / emotion / (suffix) sense of ~

感 = 咸 + 心 : Mnemonic symbol: one or multiple feelers!

感 = 咸 + 心 : Inside of the anthill, Guy Fawkes wants to drink a tequila. He already found the salt, but now he's looking for a lemon with his feelers. There's a very mysterious object on the table: it feels like a lemon, but the shape is somewhat wrong. What Guy Fawkes is inspecting with his feelers is a heart.