A small problem with my lazy loader

lazy_loader_problems.rb

# http://github.com/joho/lazy-loader

# discovered a small problem when I lazy load something that returns nil
# lazy_load in this case is proxying nil
# so ideally a would behave the same as a = nil
a = lazy_load { nil }

# this is fine
nil.nil?  # => true
a.nil?    # => true

# this is broken but.....
# i can fix it by opening up NilClass
a == nil  # => true
nil == a  # => false

# but what do i do about these?
!!nil # => false
!!a   # => true

if a
  puts "blah!"
end       # => "blah!"