To chuck a bucket of water over this couple?

[NotAnotherNameChangeAgain]

Sat on a coach behind PDA couple from hell.
The coach is completely full so I have no option to move seats. The rows are very close together so I'm less than a foot away from the action. The designers of the coach have thoughtfully tiered the seats slightly so I'm slightly raised for an even better view.
Whilst I generally have a low regard for OTT public displays of affection, I can understand that the occasionally kiss between a loved up couple is nice and generally inoffensive.
OTT couple, however, have literally got each others tongues down the others throat. They occasionally remove their tongues to lick one another's face before resuming their brave search for each others tonsils. The noise is reminiscent of a sink being plungered. Even my loudest music (headphones) can't seem to quite block it out.
This has been going on for 2 hours. I'm slightly concerned for their oxygen intake. and my lunch staying where it should

The coach journey is 6 hours long. They have yet to come up for air.

Back when I was a child, my Great Aunt used to throw buckets of water over particularly noisy cats getting it on in her garden.

WIBU to employ the same method in this situation?

Maybe run around and grab one of them and yank them apart. Then say - "oh my God I'm sure they were turning blue you must be so careful! I'm a first aider and seen this before. It was terrible. I'll carry on keeping an eye on them if you like?"

Genius Alpaca!

Lean over them and say loudly LEAVE ROOM FOR JESUS!

LEAVE ROOM FOR JESUS!
My DC just had a mini freak out because I just burst out laughing all of a sudden

Do that OP, take a photo of their reactions and post on here for the mum (aka me) who's currently stuck in the house in the middle of nowhere with a broken car and moody DC and is in dire need of entertainment!
But seriously I'd be coughing in their direction, blowing my nose super loud or making tiny giggle sounds and everytime they turn around I'd sit there like it wasn't me....

just vomit over them- that'll larn 'em

I had this last year on a train; the couple opposite were revolting & I reckon I gagged more than once when he started sucking her nose and licking her eyes..urgghhhhhhh

Say loudly while getting as close as possible to them 'Ooh thank you for this. I've been meaning to top up the wank bank.'

Download a few sound effects and play them at appropriate moments.

Start retching, loudly, every.single.time.they.snog.

So many people start feeling sick when you make a retching sound, I have a particular talent for that. evil cackle

Start singing along (badly) to your favourite tune. Make sure you're really out of tune and don't sing the correct lyrics. It'll put them right off.

LEAVE ROOM FOR JESUS

Please do that!!

Write a big 6 on a piece of paper and hold it up with a manic smile on your face. When they notice, lick your lips, wink and say 'keep practising!'

This happened to me once at a gig - it was years ago, I was in my twenties. The couple in front were seriously over the top, it was vomit-inducing, they were practically laid out flat in the seats before the band even came on. I eventually snapped when he undid her buttons and put his hand down the inside of her top and I thought he was going to pop her boob out of her bra altogether. I said (nicely, honest) Erm, you are making me feel a little bit uncomfortable..... the guy went crazy, shouted at me, called me a frigid bitch, told me I could mind my own fucking business etc etc. - really shouting. Then he grabbed her hand and they both stormed out. Result.

Sorry for the late reply. I can only access the Internet during rest stops.
Will save page and read replies to provide light relief for the next leg of the journey.

OTT couple still at it.
I got very very close to just leaning in and playing sexy music from my phone (to add ambiance) but bottled it.

Unfortunately most people on the coach don't speak English else I'd have a sweepstake set up as to when they'd finally cease and desist.

However the lady and I share enough common language to have a bet between ourselves. I have 5 shekels on it lasting until Tel Aviv (final stop) she on up to half an hour before that.

My money's on last stop, sorry.

(by "the lady" I meant the elderly lady sat next to me, not the one in the action - she clearly had a vested interest and wouldn't have been a fair competitor)

I won my 5 shekels as it lasted all the way to the last stop.
It's somewhat of a hollow victory.

Favourite suggestions have to be:
"topping up the wank bank"
and "save room for Jesus".

I personally was itching to play Eye of the Tiger for motivation

that could be sil and her husband. nice family meal and one is sitting on the others lap doing a full tonsil search. thank god they rein it in when my kids are around

yuk

leave room for jesus.....oh yes

please op, you gotta.