When I get in the bath and it's a bit hot I always

[HoneyDragon]

Sing the end bit of International Playboys. Can't help myself, it just comes out.

Go on then people. Out irrational odd habit that one....

We can't get through parking in a multi level car park without starting to sing .

Any mention of ice cream and I have to do the little ice-cream-parlour-in-heaven "I'm sorry, we're out of vanilla..." from American Dad.

We've got whippets and frequently sing songs about their exploits to the tune of "Pretty Women" from Sweeney Todd. "Silly whippets, chasing rabbits...."

I do far too many of these... and (am I really going to admit this?) not only sing the Big Bang Theory song, but have also made up actions
We always used to do the Skye Boat song on the ferry and take the high road when driving to Scotland.
I also have "make it so", which also pops out at work, non trekkers always look at me funny... and we use "he's dead, Dave. They're all dead, Dave." when someone isn't getting the message. Loads more SF stuff...oh dear.
Anyone who begins a sentence with "I woke up this morning" gets given a blues guitar riff...

When you say the word "banana" in front of my granny she always sings "yes we have no bananas, we have no bananas today".

Quite, quite potty.

She also says "Elvis the Pelvis, rock and roll Presley" at any mention of Elvis.

DD and I do see ya, don't wanna be ya!!
Also the stop, hammer time.
Lots more too, hello fellow crazy peeps!!

Late to the party, but my mum is a counsellor and every time she goes to supervision, I can't help but sing "ch-chucklevision" under my breath

Every time I use a lift (disabled, so fairly frequently) I have to say '21st floor: menswear' like Jim Carrey.

How did I miss this first tine round!

We do quite a number already listed but ones I haven't seen:

When our cat called Nell walks into the room one of us will go 'Hey Nell, you're an allstar, get your game on'

And when driving and see Hidden Dip sign, go 'Oh Taramasalata' or Blind Summit sign, I always say 'it's like the G8 you know but for blind people'. A joke I once told some Americans we were driving with when they asked what it meant and they believed me 😃

A relative used to live in Ware, Hertfordshire.

Any time it was mentioned, this would occur:

Person 1: i do quite like living in Ware
P2: Where?
P1: Ware
P3: Where?
P1: WARE
P4: Where?
P1: WARE
P2: oh WARE.

And we laughed every time

Cooking tonight and husband asks for Thyme and without realising I start singing something from a Denzel Washington movie 'Thyme is on my side, yes it is'. Apparently I do it every thyme time

Anytime anyone mentions Canada I have to sing 'there's no Canada like French Canada' a la South Park 😳 come across a single person yet who gets the reference, usually just get funny looks....

Walking past Canadian embassy with brother and definitely definitely did NOT sing "Uncle Fucker" from South Park.