You did the right thing. You have every right to or not to give your whip to him, seeing it is your item. He was probably going to steal your whip seeing h ow he swore at you etc after you refused to let him "borrow" it. I hardly trust anybody on RuneScape, very few people on my friends list I can trust iwht rare items. I can trust a handful of them, and one person on my ignore list I have known since he was a level 13. We met each other on RuneScape, and do not know each other IRL. But I know I can trust him with my password even. Recently I lent out 600k to a friend of mine, and I know that they will give it back. Trust few people, people.