diff --git a/src/sum.sol b/src/sum.sol
index 5025980..7f0b7f7 100644
--- a/src/sum.sol
+++ b/src/sum.sol
@@ -39,11 +39,6 @@ contract Sum is DSNote {
         return either(bit == usr, can[bit][usr] == 1);
     }
 
-    event Caller(address caller);
-    function caller() external {
-        emit Caller(msg.sender);
-    }
-
     // --- Data ---
     struct Inc {
         uint net;  // Net counter value