You were talking to
you are relatively inexperienced in german yourself, and made many common englishmen's mistakes (like abusing cognates) while learning it, leading to all these misunderstandings.
For example, firstly,
you said "Eagle" or "Igel" when you meant "Adler", and was misunderstood as saying that hedgehogs were majestic animals.
When they said it wasn't majestic, you said "nicht müssen" (translating "not" and "must" individually) where you should have said "nicht dürfen". Instead of "must not", they understood "don't have to", so they continued.
You, aware of these misunderstandings, didn't blame them and instead tried to befriend them by promising a gift. However,
the word "gift" in German means "poison", so you went from being just a weird guy who likes hedgehogs to a psychopath who threatens people with poison (presumably because they don't share his affinity for hedgehogs).
And thats's when they panicked and started chasing you away.