When Blossom has a fit over dealing with dissatisfied customers, she throws a mustard bottle - only for it to land and squirt back at her, covering her in blotches of mustard. In the next shot when she answers the phone, she is back to being clean.
Ms. Keane spills to the Professor and the Mayor via the hotline about neglecting her cat Valentino. Finding out about her negligence to her cat, they would have turned her in for animal cruelty.
Blossom's letter to the Professor about running away starts out with "Dear Professor," when written; but when he reads it out loud, he does not say "Dear". On the other hand, as he reads the rest of her letter with her voiceover being used, the phrase "I am" is used instead of the contraction "I'm" when read out loud.
While Blossom is at work at a local restaurant called Hot Dog on a Skewer, she receives a phone call from Mojo Jojo; but she didn't tell him, or the Professor, or her sisters beforehand about working at the business.