“You ate the melon, now sit through the shivers.”

You made your choice, now live with the consequences.

Heard in the wild

خودت خواستی این ماشینو بخری؛ خربزه خوردی، پای لرزش هم بشین.

You were the one who wanted this car. You made your bed, now lie in it.

A note

Traditional Persian medicine classes melon as a "cold" food, said to bring on a chill if you eat too much.

More grandmother's advice

هر کسی به فکر خویش است، کوسه به فکر ریش است
har kasi be fekr-e khish ast, kuse be fekr-e rish ast
“Everyone thinks of himself; the beardless man thinks of beards.”
Everyone is wrapped up in their own concerns.
تخم‌مرغ دزد، شتر دزد می‌شه
tokhm-e morgh dozd, shotor dozd mishe
“An egg thief becomes a camel thief.”
Small misdeeds grow into big ones, so nip bad habits in the bud.
با حلوا حلوا گفتن دهن شیرین نمی‌شه
bâ halvâ halvâ goftan dahan shirin nemishe
“Saying "halva, halva" won't sweeten your mouth.”
Talk is cheap: you have to actually do it.
شتر دیدی، ندیدی
shotor didi, nadidi
“You saw a camel? No, you didn't.”
You saw nothing. Keep it to yourself.