Ruby WTF?!?

Was ist mit Ruby?

irb(main):001:0> p = Proc.new { puts "foo" }
irb(main):002:0> s = "bar"

irb(main):003:0> s === p

false

irb(main):004:0> p === s

"foo"

irb(main):001:0> p = Proc.new { |x| puts "foo #{x}" }
irb(main):002:0> s = "bar"

irb(main):003:0> p === s

"foo bar"

irb(main):001:0> sleep 3.5

irb(main):002:0> sleep 3.5