switch (absDelta)
{
  case 1:
    return "You are basically on fire";
  case > 1 and <= 5:
    return "Some other message to do with warmth";
  case > 5 and <= 10:
    return "....";
  default:
    return "standard message" ;
}

switch (absDelta)
{
  case 1:
    return "You are basically on fire";
  case > 1 and <= 5:
    return "Some other message to do with warmth";
  case > 5 and <= 10:
    return "....";
  default:
    return "standard message" ;
}