Microbiology: Mnemonic #1

So this mnemonic only makes sense for Filipino students (sorry).  This is a funny and graphic way of remembering organisms that yield a positive reaction for H2S may it be in the TSI. 

H2S Positive :  Si Ed poop Salmonella.

• Si  :     Citrobacter
• Ed:      Edwardsiella
• Poop:  Proteus
• Salmonella typhi
• H2S (+) is black and a poop is somehow black