**When Squidward turns on the Krusty Krab's security footage, the date 05-01-99 ({{Time|May 1}}, {{Time|1999}}) can be seen on the bottom of the table. This is a reference to the airdate of "[[Help Wanted]]," the first episode of {{SBSP}}.
**When Squidward turns on the Krusty Krab's security footage, the date 05-01-99 ({{Time|May 1}}, {{Time|1999}}) can be seen on the bottom of the table. This is a reference to the airdate of "[[Help Wanted]]," the first episode of {{SBSP}}.
*This is the third appearance of [[Spot]], the first being in "[[Plankton's Pet]]" and the second being in "[[Spot Returns]]."
*This is the third appearance of [[Spot]], the first being in "[[Plankton's Pet]]" and the second being in "[[Spot Returns]]."
*This the fifth time SpongeBob's tears cause a flood. The previous four were "[[Grandma's Kisses]]", "[[Funny Pants]]", "[[A Day Without Tears]]", and "[[SpongeBob You're Fired]].
===Cultural references===
===Cultural references===
*The boat that fell on top of Squidward is the {{W|RMS Titanic|RMS ''Titanic''}}, a British passenger liner that sank in the Atlantic after colliding with an iceberg on April 15, 1912.
*The boat that fell on top of Squidward is the {{W|RMS Titanic|RMS ''Titanic''}}, a British passenger liner that sank in the Atlantic after colliding with an iceberg on April 15, 1912.
**This is the Titanic's second appearance. The first was "[[Moving Bubble Bass]]".
*The movie Plankton is seen watching is the 1961 horror film ''{{W|Creature from the Haunted Sea}}''.
*The movie Plankton is seen watching is the 1961 horror film ''{{W|Creature from the Haunted Sea}}''.
*While Karen is in sleep mode, the floating shapes on her screen are a reference to the Mystify screensaver included in Windows XP and earlier.
*While Karen is in sleep mode, the floating shapes on her screen are a reference to the Mystify screensaver included in Windows XP and earlier.
Karen's "kissy face" screensaver from "Grandmum's the Word" reappears when she kisses Plankton.
When Squidward turns on the Krusty Krab's security footage, a drawing of DoodleBob can be seen on the bottom of the table, referencing both "Frankendoodle" and "Doodle Dimension."
SpongeBob mimicking Plankton is a reference to "Mimic Madness."
Plankton turning into a genie when he is trying to open the Krabby Patty formula is a reference to "Spin the Bottle."
Squidward's claustrophobia from "Wishing You Well" is brought up again in the ending.
Squidward getting burnt by fire is similar to the deleted scene from "Just One Bite."
The piano falling on Squidward is similar to SpongeBob dropping a piano on Plankton (Dr. Peter Lankton), twice, from "Fear of a Krabby Patty."
When Squidward turns on the Krusty Krab's security footage, the date 05-01-99 (May 1, 1999) can be seen on the bottom of the table. This is a reference to the airdate of "Help Wanted," the first episode of SpongeBob SquarePants.
The boat that fell on top of Squidward is the RMS Titanic, a British passenger liner that sank in the Atlantic after colliding with an iceberg on April 15, 1912.
This is the Titanic's second appearance. The first was "Moving Bubble Bass".