diff --git a/jstrr.css b/jstrr.css
index c6dac0c..e68a45c 100644
--- a/jstrr.css
+++ b/jstrr.css
@@ -218,4 +218,4 @@
 border: none;
 background: #ffffffc9;
 padding: 10px 15px;
-}
\ No newline at end of file
+}
diff --git a/jtserv/jtserv.rb b/jtserv/jtserv.rb
index 6be6fc0..66abec8 100755
--- a/jtserv/jtserv.rb
+++ b/jtserv/jtserv.rb
@@ -261,7 +261,7 @@
     pass =     nil	# Go to next step
     beginner = nil	# Beginner flag
     secret   = (/secret/i =~ h["trrmode"].to_s)
-    time  = h["finish"] - h["start"]
+    time  = h["finish"].to_f - h["start"].to_f
     types = h["types"].to_i
     miss  = h["miss"].to_i
     text  = h["text"]
@@ -533,7 +533,7 @@
           end
           json["start"] = userinfo["start"]
           json["finish"] = Time.now.to_f
-STDERR.printf("Start=%.2f, Finish=%.2f\n", json["start"], json["finish"])
+#STDERR.printf("Start=%.2f, Finish=%.2f\n", json["start"], json["finish"])
           eval  = db.evalStep(user, json)
           socksend.call(ws_conn, JSON.generate(eval))
           userinfo.delete("typelist")
diff --git a/jtserv/rmuser.sh b/jtserv/rmuser.sh
new file mode 100755
index 0000000..fdef9c0
--- /dev/null
+++ b/jtserv/rmuser.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+## Feeding CSV as follows:
+##	user
+#	C123456X
+
+DB=${1:-users.sq3}
+CSV=${2:-rmusers.csv}
+if [ ! -f $DB ]; then
+  echo "You need to create user-sqlite3 file first" >&2
+  head $0 >&2; exit
+fi
+sqlite3 ${DB} <<-EOF
+	.mode csv
+	CREATE TEMPORARY TABLE rmuser(user);
+	.import $CSV rmuser
+	DELETE FROM rmuser WHERE user LIKE 'user';	-- rm CSV header
+	select * from rmuser;
+	select count(*) from rmuser;
+	PRAGMA foreign_keys=on;
+	SELECT count(user)||'users found' FROM users;
+	DELETE FROM users WHERE user IN (SELECT user FROM rmuser);
+	SELECT count(user)||'users remain' FROM users;
+EOF
diff --git a/rmuser.sh b/rmuser.sh
new file mode 100644
index 0000000..fdef9c0
--- /dev/null
+++ b/rmuser.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+## Feeding CSV as follows:
+##	user
+#	C123456X
+
+DB=${1:-users.sq3}
+CSV=${2:-rmusers.csv}
+if [ ! -f $DB ]; then
+  echo "You need to create user-sqlite3 file first" >&2
+  head $0 >&2; exit
+fi
+sqlite3 ${DB} <<-EOF
+	.mode csv
+	CREATE TEMPORARY TABLE rmuser(user);
+	.import $CSV rmuser
+	DELETE FROM rmuser WHERE user LIKE 'user';	-- rm CSV header
+	select * from rmuser;
+	select count(*) from rmuser;
+	PRAGMA foreign_keys=on;
+	SELECT count(user)||'users found' FROM users;
+	DELETE FROM users WHERE user IN (SELECT user FROM rmuser);
+	SELECT count(user)||'users remain' FROM users;
+EOF