I am sick of seeing code like this...

stereotypicalLayers.cs

//the 'domain/service' layer...
public class ContactService
{
    public ContactService(IContactRepository contactRepository)
    {
      _contactRepository = contactRepository;
    }
  
    public Contact GetContact(int id)
    {
      var contact = _contactRepository.FindById(id);
      return contact;
    }
}

//the 'data' layer...
public class ContactRepository : IContactRepository
{
  public ContactRepository(DataContext db)
  {
    _db = db;
  }
  
  public Contact FindById(int id)
  {
    var qry = from c in _db.Contacts
          where c.ContactId == id
          && c.IsDeleted == false
          select c;
          
    return qry.FirstOrDefault();
  }
}