Just had a bit of a spook from my Brother. Ate some piel de sapo melon seeds and he said they are toxic. Are they? Should I be worried?
I can find no evidence via internet search that the seeds of Piel de Sapo melons have any toxicity whatsoever.
Even if they did, eating a handful of seeds would be harmless. For example, while apple seeds are definitely toxic, you have to eat several dozen of them to feel any ill effects.
Melon seeds, like pumpkin seeds, can be toasted and eaten as a snack. Recipes don't warn about a need to reach high heat, so there's no reason to think they wouldn't be safe raw. And your melon is a variety of normal melon, not something exotic to be concerned about