1 Dwalin: I've bin on soom perilous adventures in me lifetime. {translation: I have participated in some perilous adventures in my lifetime.}
2 Dwalin: But ye learn a lot from them, ye ken? I learnt a valuable lesson from thu Tomb o' Terrors. {translation: But one learns a lot from them, you know? I learnt a valuable lesson from the Tomb of Terrors.}
3 Lambert: What did you learn from that?
4 Dwalin: Ne'er buy a used dungeon map from a one-eyed, one-armed, lame adventurer called "Lucky". {translation: Never buy a used dungeon map from a one-eyed, one-armed, lame adventurer called "Lucky".}

Also, don't walk into schmuck bait traps.

Like the Tomb of Terrors.