diff --git a/src/_zkapauthorizer/tests/test_storage_protocol.py b/src/_zkapauthorizer/tests/test_storage_protocol.py
index c027dfd42d06b4f4d8fa77581576382a7fc7bea7..30057e186e5f5ed6f8f2df706e18dc71a423a04d 100644
--- a/src/_zkapauthorizer/tests/test_storage_protocol.py
+++ b/src/_zkapauthorizer/tests/test_storage_protocol.py
@@ -1014,85 +1014,6 @@ class ShareTests(TestCase):
             ),
         )
 
-    @given(
-        storage_index=storage_indexes(),
-        secrets=tuples(
-            write_enabler_secrets(),
-            lease_renew_secrets(),
-            lease_cancel_secrets(),
-        ),
-        test_and_write_vectors_for_shares=slot_test_and_write_vectors_for_shares(),
-    )
-    def test_client_cannot_control_lease_behavior(
-        self, storage_index, secrets, test_and_write_vectors_for_shares
-    ):
-        """
-        If the client passes ``renew_leases`` to *slot_testv_and_readv_and_writev*
-        it fails with ``TypeError``, no lease is updated, and no share data is
-        written.
-        """
-        # First, tell the client to let us violate the protocol.  It is the
-        # server's responsibility to defend against this attack.
-        self.local_remote_server.check_args = False
-
-        # The nice Python API doesn't let you do this so we drop down to
-        # the layer below.  We also use positional arguments because they
-        # transit the network differently from keyword arguments.  Yay.
-        d = self.local_remote_server.callRemote(
-            "slot_testv_and_readv_and_writev",
-            # passes
-            _encode_passes(
-                self.pass_factory.get(
-                    slot_testv_and_readv_and_writev_message(storage_index),
-                    1,
-                ),
-            ),
-            # storage_index
-            storage_index,
-            # secrets
-            secrets,
-            # tw_vectors
-            {k: v.for_call() for (k, v) in test_and_write_vectors_for_shares.items()},
-            # r_vector
-            [],
-            # add_leases
-            True,
-        )
-
-        # The operation should fail.
-        self.expectThat(
-            d,
-            failed(
-                AfterPreprocessing(
-                    lambda f: f.value,
-                    IsInstance(TypeError),
-                ),
-            ),
-        )
-
-        # There should be no shares at the given storage index.
-        d = self.client.slot_readv(
-            storage_index,
-            # Surprise.  shares=None means all shares.
-            shares=None,
-            r_vector=list(
-                list(map(write_vector_to_read_vector, vector.write_vector))
-                for vector in test_and_write_vectors_for_shares.values()
-            ),
-        )
-        self.expectThat(
-            d,
-            succeeded(
-                Equals({}),
-            ),
-        )
-
-        # And there should be no leases on those non-shares.
-        self.expectThat(
-            list(self.anonymous_storage_server.get_slot_leases(storage_index)),
-            Equals([]),
-        )
-
 
 def assert_read_back_data(
     self, storage_index, secrets, test_and_write_vectors_for_shares