The Propper way to fire up MySQL

grrr
been pulling my hair out as cron wasnt firing up, tracked the problem down to rc.local, the command to start mysql was preventing cron from running but everything seemed A-OK on the outside.
heres the correct lines to insert into rc.local on OpenBSD to fireup mysql without causing any knock on effects:
if [ -x /usr/local/bin/mysqld_safe ]; then
/usr/local/bin/mysqld_safe > /dev/null & echo -n 'mysql '
fi